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Finding the Fourth Proportional to 316,764.32, 437,123.36 and 180,805.28

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Solution

The fourth proportional to 316,764.32, 437,123.36 and 180,805.28 is: 249,504.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,764.32 : 437,123.36 = 180,805.28 : x
  2. Step 2: Convert to fraction form
    316,764.32/437,123.36 = 180,805.28/x
  3. Step 3: Cross multiply
    316,764.32x = 437,123.36 × 180,805.28
  4. Step 4: Simplify right side
    316,764.32x = 79,034,211,499.34
  5. Step 5: Solve for x
    x = 79,034,211,499.34/316,764.32
  6. Step 6: Final answer
    x = 249,504.78

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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.