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Finding the Fourth Proportional to 442,337.78, 663,506.70 and 109,913.78

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Solution

The fourth proportional to 442,337.78, 663,506.70 and 109,913.78 is: 164,870.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,337.78 : 663,506.70 = 109,913.78 : x
  2. Step 2: Convert to fraction form
    442,337.78/663,506.70 = 109,913.78/x
  3. Step 3: Cross multiply
    442,337.78x = 663,506.70 × 109,913.78
  4. Step 4: Simplify right side
    442,337.78x = 72,928,529,452.33
  5. Step 5: Solve for x
    x = 72,928,529,452.33/442,337.78
  6. Step 6: Final answer
    x = 164,870.68

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1.5x scale

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.