Home / 317,434.83-476,276.15-139,817.31

Finding the Fourth Proportional to 317,434.83, 476,276.15 and 139,817.31

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Solution

The fourth proportional to 317,434.83, 476,276.15 and 139,817.31 is: 209,780.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,434.83 : 476,276.15 = 139,817.31 : x
  2. Step 2: Convert to fraction form
    317,434.83/476,276.15 = 139,817.31/x
  3. Step 3: Cross multiply
    317,434.83x = 476,276.15 × 139,817.31
  4. Step 4: Simplify right side
    317,434.83x = 66,591,650,110.16
  5. Step 5: Solve for x
    x = 66,591,650,110.16/317,434.83
  6. Step 6: Final answer
    x = 209,780.54

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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.