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Finding the Fourth Proportional to 347,752.62, 521,641.89 and 123,136.74

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Solution

The fourth proportional to 347,752.62, 521,641.89 and 123,136.74 is: 184,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,752.62 : 521,641.89 = 123,136.74 : x
  2. Step 2: Convert to fraction form
    347,752.62/521,641.89 = 123,136.74/x
  3. Step 3: Cross multiply
    347,752.62x = 521,641.89 × 123,136.74
  4. Step 4: Simplify right side
    347,752.62x = 64,233,281,782.04
  5. Step 5: Solve for x
    x = 64,233,281,782.04/347,752.62
  6. Step 6: Final answer
    x = 184,709.70

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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.