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Finding the Fourth Proportional to 442,439, 663,660.93 and 110,015

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Solution

The fourth proportional to 442,439, 663,660.93 and 110,015 is: 165,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,439 : 663,660.93 = 110,015 : x
  2. Step 2: Convert to fraction form
    442,439/663,660.93 = 110,015/x
  3. Step 3: Cross multiply
    442,439x = 663,660.93 × 110,015
  4. Step 4: Simplify right side
    442,439x = 73,012,657,213.95
  5. Step 5: Solve for x
    x = 73,012,657,213.95/442,439
  6. Step 6: Final answer
    x = 165,023.10

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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.