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Finding the Fourth Proportional to 545,097.72, 752,221.58 and 300,080.49

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Solution

The fourth proportional to 545,097.72, 752,221.58 and 300,080.49 is: 414,103.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,097.72 : 752,221.58 = 300,080.49 : x
  2. Step 2: Convert to fraction form
    545,097.72/752,221.58 = 300,080.49/x
  3. Step 3: Cross multiply
    545,097.72x = 752,221.58 × 300,080.49
  4. Step 4: Simplify right side
    545,097.72x = 225,727,020,337.47
  5. Step 5: Solve for x
    x = 225,727,020,337.47/545,097.72
  6. Step 6: Final answer
    x = 414,103.77

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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.