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Finding the Fourth Proportional to 346,571, 478,269.42 and 187,595

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Solution

The fourth proportional to 346,571, 478,269.42 and 187,595 is: 258,881.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,571 : 478,269.42 = 187,595 : x
  2. Step 2: Convert to fraction form
    346,571/478,269.42 = 187,595/x
  3. Step 3: Cross multiply
    346,571x = 478,269.42 × 187,595
  4. Step 4: Simplify right side
    346,571x = 89,720,951,844.90
  5. Step 5: Solve for x
    x = 89,720,951,844.90/346,571
  6. Step 6: Final answer
    x = 258,881.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.