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Finding the Fourth Proportional to 561,548.40, 842,366.76 and 187,572.72

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Solution

The fourth proportional to 561,548.40, 842,366.76 and 187,572.72 is: 281,373.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,548.40 : 842,366.76 = 187,572.72 : x
  2. Step 2: Convert to fraction form
    561,548.40/842,366.76 = 187,572.72/x
  3. Step 3: Cross multiply
    561,548.40x = 842,366.76 × 187,572.72
  4. Step 4: Simplify right side
    561,548.40x = 158,005,024,410.79
  5. Step 5: Solve for x
    x = 158,005,024,410.79/561,548.40
  6. Step 6: Final answer
    x = 281,373.83

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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.