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Finding the Fourth Proportional to 318,906.24, 440,091.12 and 175,666.72

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Solution

The fourth proportional to 318,906.24, 440,091.12 and 175,666.72 is: 242,420.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,906.24 : 440,091.12 = 175,666.72 : x
  2. Step 2: Convert to fraction form
    318,906.24/440,091.12 = 175,666.72/x
  3. Step 3: Cross multiply
    318,906.24x = 440,091.12 × 175,666.72
  4. Step 4: Simplify right side
    318,906.24x = 77,309,363,551.53
  5. Step 5: Solve for x
    x = 77,309,363,551.53/318,906.24
  6. Step 6: Final answer
    x = 242,420.35

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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.