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Finding the Fourth Proportional to 286,730.30, 429,949.65 and 168,437.90

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Solution

The fourth proportional to 286,730.30, 429,949.65 and 168,437.90 is: 252,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,730.30 : 429,949.65 = 168,437.90 : x
  2. Step 2: Convert to fraction form
    286,730.30/429,949.65 = 168,437.90/x
  3. Step 3: Cross multiply
    286,730.30x = 429,949.65 × 168,437.90
  4. Step 4: Simplify right side
    286,730.30x = 72,419,816,151.74
  5. Step 5: Solve for x
    x = 72,419,816,151.74/286,730.30
  6. Step 6: Final answer
    x = 252,571.20

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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.