Home / 459,140.80-688,711.20-222,507.40

Finding the Fourth Proportional to 459,140.80, 688,711.20 and 222,507.40

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Solution

The fourth proportional to 459,140.80, 688,711.20 and 222,507.40 is: 333,761.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,140.80 : 688,711.20 = 222,507.40 : x
  2. Step 2: Convert to fraction form
    459,140.80/688,711.20 = 222,507.40/x
  3. Step 3: Cross multiply
    459,140.80x = 688,711.20 × 222,507.40
  4. Step 4: Simplify right side
    459,140.80x = 153,243,338,462.88
  5. Step 5: Solve for x
    x = 153,243,338,462.88/459,140.80
  6. Step 6: Final answer
    x = 333,761.10

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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.