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Finding the Fourth Proportional to 438,067.80, 657,101.70 and 298,099.80

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Solution

The fourth proportional to 438,067.80, 657,101.70 and 298,099.80 is: 447,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,067.80 : 657,101.70 = 298,099.80 : x
  2. Step 2: Convert to fraction form
    438,067.80/657,101.70 = 298,099.80/x
  3. Step 3: Cross multiply
    438,067.80x = 657,101.70 × 298,099.80
  4. Step 4: Simplify right side
    438,067.80x = 195,881,885,349.66
  5. Step 5: Solve for x
    x = 195,881,885,349.66/438,067.80
  6. Step 6: Final answer
    x = 447,149.70

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Similar ratio
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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.