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Finding the Fourth Proportional to 530.16, 793.80 and 497.69

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Solution

The fourth proportional to 530.16, 793.80 and 497.69 is: 745.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.16 : 793.80 = 497.69 : x
  2. Step 2: Convert to fraction form
    530.16/793.80 = 497.69/x
  3. Step 3: Cross multiply
    530.16x = 793.80 × 497.69
  4. Step 4: Simplify right side
    530.16x = 395,062.35
  5. Step 5: Solve for x
    x = 395,062.35/530.16
  6. Step 6: Final answer
    x = 745.18

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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.