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Finding the Fourth Proportional to 445,994.31, 615,472.55 and 242,045.26

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Solution

The fourth proportional to 445,994.31, 615,472.55 and 242,045.26 is: 334,022.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,994.31 : 615,472.55 = 242,045.26 : x
  2. Step 2: Convert to fraction form
    445,994.31/615,472.55 = 242,045.26/x
  3. Step 3: Cross multiply
    445,994.31x = 615,472.55 × 242,045.26
  4. Step 4: Simplify right side
    445,994.31x = 148,972,213,387.61
  5. Step 5: Solve for x
    x = 148,972,213,387.61/445,994.31
  6. Step 6: Final answer
    x = 334,022.68

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1.5x scale

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.