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Finding the Fourth Proportional to 457,165.52, 685,750.55 and 187,440.98

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Solution

The fourth proportional to 457,165.52, 685,750.55 and 187,440.98 is: 281,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,165.52 : 685,750.55 = 187,440.98 : x
  2. Step 2: Convert to fraction form
    457,165.52/685,750.55 = 187,440.98/x
  3. Step 3: Cross multiply
    457,165.52x = 685,750.55 × 187,440.98
  4. Step 4: Simplify right side
    457,165.52x = 128,537,754,190.33
  5. Step 5: Solve for x
    x = 128,537,754,190.33/457,165.52
  6. Step 6: Final answer
    x = 281,162.40

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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.