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Finding the Fourth Proportional to 302,490.71, 453,748.59 and 89,258.63

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Solution

The fourth proportional to 302,490.71, 453,748.59 and 89,258.63 is: 133,891.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,490.71 : 453,748.59 = 89,258.63 : x
  2. Step 2: Convert to fraction form
    302,490.71/453,748.59 = 89,258.63/x
  3. Step 3: Cross multiply
    302,490.71x = 453,748.59 × 89,258.63
  4. Step 4: Simplify right side
    302,490.71x = 40,500,975,239.09
  5. Step 5: Solve for x
    x = 40,500,975,239.09/302,490.71
  6. Step 6: Final answer
    x = 133,891.63

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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.