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Finding the Fourth Proportional to 615,024.80, 922,666.80 and 194,343.20

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Solution

The fourth proportional to 615,024.80, 922,666.80 and 194,343.20 is: 291,555.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,024.80 : 922,666.80 = 194,343.20 : x
  2. Step 2: Convert to fraction form
    615,024.80/922,666.80 = 194,343.20/x
  3. Step 3: Cross multiply
    615,024.80x = 922,666.80 × 194,343.20
  4. Step 4: Simplify right side
    615,024.80x = 179,314,018,445.76
  5. Step 5: Solve for x
    x = 179,314,018,445.76/615,024.80
  6. Step 6: Final answer
    x = 291,555.75

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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.