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Finding the Fourth Proportional to 302,415.90, 453,186.45 and 133,798.20

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Solution

The fourth proportional to 302,415.90, 453,186.45 and 133,798.20 is: 200,503.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,415.90 : 453,186.45 = 133,798.20 : x
  2. Step 2: Convert to fraction form
    302,415.90/453,186.45 = 133,798.20/x
  3. Step 3: Cross multiply
    302,415.90x = 453,186.45 × 133,798.20
  4. Step 4: Simplify right side
    302,415.90x = 60,635,531,274.39
  5. Step 5: Solve for x
    x = 60,635,531,274.39/302,415.90
  6. Step 6: Final answer
    x = 200,503.78

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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.