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Finding the Fourth Proportional to 442,973.70, 664,460.55 and 162,600.30

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Solution

The fourth proportional to 442,973.70, 664,460.55 and 162,600.30 is: 243,900.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,973.70 : 664,460.55 = 162,600.30 : x
  2. Step 2: Convert to fraction form
    442,973.70/664,460.55 = 162,600.30/x
  3. Step 3: Cross multiply
    442,973.70x = 664,460.55 × 162,600.30
  4. Step 4: Simplify right side
    442,973.70x = 108,041,484,768.17
  5. Step 5: Solve for x
    x = 108,041,484,768.17/442,973.70
  6. Step 6: Final answer
    x = 243,900.45

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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.