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Finding the Fourth Proportional to 418,581.08, 628,150.80 and 152,341.52

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Solution

The fourth proportional to 418,581.08, 628,150.80 and 152,341.52 is: 228,613.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,581.08 : 628,150.80 = 152,341.52 : x
  2. Step 2: Convert to fraction form
    418,581.08/628,150.80 = 152,341.52/x
  3. Step 3: Cross multiply
    418,581.08x = 628,150.80 × 152,341.52
  4. Step 4: Simplify right side
    418,581.08x = 95,693,447,661.22
  5. Step 5: Solve for x
    x = 95,693,447,661.22/418,581.08
  6. Step 6: Final answer
    x = 228,613.89

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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.