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Finding the Fourth Proportional to 302,612.73, 453,978.90 and 89,384.35

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Solution

The fourth proportional to 302,612.73, 453,978.90 and 89,384.35 is: 134,094.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,612.73 : 453,978.90 = 89,384.35 : x
  2. Step 2: Convert to fraction form
    302,612.73/453,978.90 = 89,384.35/x
  3. Step 3: Cross multiply
    302,612.73x = 453,978.90 × 89,384.35
  4. Step 4: Simplify right side
    302,612.73x = 40,578,608,890.22
  5. Step 5: Solve for x
    x = 40,578,608,890.22/302,612.73
  6. Step 6: Final answer
    x = 134,094.19

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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.