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Finding the Fourth Proportional to 291,704.49, 436,876.88 and 281,602.31

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Solution

The fourth proportional to 291,704.49, 436,876.88 and 281,602.31 is: 421,747.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,704.49 : 436,876.88 = 281,602.31 : x
  2. Step 2: Convert to fraction form
    291,704.49/436,876.88 = 281,602.31/x
  3. Step 3: Cross multiply
    291,704.49x = 436,876.88 × 281,602.31
  4. Step 4: Simplify right side
    291,704.49x = 123,025,535,001.20
  5. Step 5: Solve for x
    x = 123,025,535,001.20/291,704.49
  6. Step 6: Final answer
    x = 421,747.14

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1.5x scale

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.