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Finding the Fourth Proportional to 318,011.45, 476,720.72 and 107,502.17

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Solution

The fourth proportional to 318,011.45, 476,720.72 and 107,502.17 is: 161,153.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,011.45 : 476,720.72 = 107,502.17 : x
  2. Step 2: Convert to fraction form
    318,011.45/476,720.72 = 107,502.17/x
  3. Step 3: Cross multiply
    318,011.45x = 476,720.72 × 107,502.17
  4. Step 4: Simplify right side
    318,011.45x = 51,248,511,346.45
  5. Step 5: Solve for x
    x = 51,248,511,346.45/318,011.45
  6. Step 6: Final answer
    x = 161,153.04

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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.