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Finding the Fourth Proportional to 303,630.96, 418,978.88 and 176,281.68

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Solution

The fourth proportional to 303,630.96, 418,978.88 and 176,281.68 is: 243,250.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,630.96 : 418,978.88 = 176,281.68 : x
  2. Step 2: Convert to fraction form
    303,630.96/418,978.88 = 176,281.68/x
  3. Step 3: Cross multiply
    303,630.96x = 418,978.88 × 176,281.68
  4. Step 4: Simplify right side
    303,630.96x = 73,858,300,850.92
  5. Step 5: Solve for x
    x = 73,858,300,850.92/303,630.96
  6. Step 6: Final answer
    x = 243,250.23

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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.