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Finding the Fourth Proportional to 518,349.20, 777,255 and 237,624.72

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Solution

The fourth proportional to 518,349.20, 777,255 and 237,624.72 is: 356,313.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,349.20 : 777,255 = 237,624.72 : x
  2. Step 2: Convert to fraction form
    518,349.20/777,255 = 237,624.72/x
  3. Step 3: Cross multiply
    518,349.20x = 777,255 × 237,624.72
  4. Step 4: Simplify right side
    518,349.20x = 184,695,001,743.60
  5. Step 5: Solve for x
    x = 184,695,001,743.60/518,349.20
  6. Step 6: Final answer
    x = 356,313.86

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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.