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Finding the Fourth Proportional to 455,437.61, 682,287.07 and 255,152.15

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Solution

The fourth proportional to 455,437.61, 682,287.07 and 255,152.15 is: 382,241.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,437.61 : 682,287.07 = 255,152.15 : x
  2. Step 2: Convert to fraction form
    455,437.61/682,287.07 = 255,152.15/x
  3. Step 3: Cross multiply
    455,437.61x = 682,287.07 × 255,152.15
  4. Step 4: Simplify right side
    455,437.61x = 174,087,009,416.27
  5. Step 5: Solve for x
    x = 174,087,009,416.27/455,437.61
  6. Step 6: Final answer
    x = 382,241.18

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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.