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Finding the Fourth Proportional to 302,561.40, 453,404.70 and 133,943.70

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Solution

The fourth proportional to 302,561.40, 453,404.70 and 133,943.70 is: 200,721.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,561.40 : 453,404.70 = 133,943.70 : x
  2. Step 2: Convert to fraction form
    302,561.40/453,404.70 = 133,943.70/x
  3. Step 3: Cross multiply
    302,561.40x = 453,404.70 × 133,943.70
  4. Step 4: Simplify right side
    302,561.40x = 60,730,703,115.39
  5. Step 5: Solve for x
    x = 60,730,703,115.39/302,561.40
  6. Step 6: Final answer
    x = 200,721.91

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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.