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Finding the Fourth Proportional to 805.00, 1,207.51 and 497.07

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Solution

The fourth proportional to 805.00, 1,207.51 and 497.07 is: 745.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    805.00 : 1,207.51 = 497.07 : x
  2. Step 2: Convert to fraction form
    805.00/1,207.51 = 497.07/x
  3. Step 3: Cross multiply
    805.00x = 1,207.51 × 497.07
  4. Step 4: Simplify right side
    805.00x = 600,218.15
  5. Step 5: Solve for x
    x = 600,218.15/805.00
  6. Step 6: Final answer
    x = 745.61

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.