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Finding the Fourth Proportional to 305,487.72, 458,566.74 and 242,711.28

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Solution

The fourth proportional to 305,487.72, 458,566.74 and 242,711.28 is: 364,333.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,487.72 : 458,566.74 = 242,711.28 : x
  2. Step 2: Convert to fraction form
    305,487.72/458,566.74 = 242,711.28/x
  3. Step 3: Cross multiply
    305,487.72x = 458,566.74 × 242,711.28
  4. Step 4: Simplify right side
    305,487.72x = 111,299,320,430.83
  5. Step 5: Solve for x
    x = 111,299,320,430.83/305,487.72
  6. Step 6: Final answer
    x = 364,333.21

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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.