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Finding the Fourth Proportional to 384,337.80, 576,506.70 and 242,620.20

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Solution

The fourth proportional to 384,337.80, 576,506.70 and 242,620.20 is: 363,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,337.80 : 576,506.70 = 242,620.20 : x
  2. Step 2: Convert to fraction form
    384,337.80/576,506.70 = 242,620.20/x
  3. Step 3: Cross multiply
    384,337.80x = 576,506.70 × 242,620.20
  4. Step 4: Simplify right side
    384,337.80x = 139,872,170,855.34
  5. Step 5: Solve for x
    x = 139,872,170,855.34/384,337.80
  6. Step 6: Final answer
    x = 363,930.30

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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.