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Finding the Fourth Proportional to 403,133.80, 604,700.70 and 136,964.20

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Solution

The fourth proportional to 403,133.80, 604,700.70 and 136,964.20 is: 205,446.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,133.80 : 604,700.70 = 136,964.20 : x
  2. Step 2: Convert to fraction form
    403,133.80/604,700.70 = 136,964.20/x
  3. Step 3: Cross multiply
    403,133.80x = 604,700.70 × 136,964.20
  4. Step 4: Simplify right side
    403,133.80x = 82,822,347,614.94
  5. Step 5: Solve for x
    x = 82,822,347,614.94/403,133.80
  6. Step 6: Final answer
    x = 205,446.30

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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.