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Finding the Fourth Proportional to 508,158.97, 701,254.60 and 278,711.58

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Solution

The fourth proportional to 508,158.97, 701,254.60 and 278,711.58 is: 384,619.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,158.97 : 701,254.60 = 278,711.58 : x
  2. Step 2: Convert to fraction form
    508,158.97/701,254.60 = 278,711.58/x
  3. Step 3: Cross multiply
    508,158.97x = 701,254.60 × 278,711.58
  4. Step 4: Simplify right side
    508,158.97x = 195,447,779,481.19
  5. Step 5: Solve for x
    x = 195,447,779,481.19/508,158.97
  6. Step 6: Final answer
    x = 384,619.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.