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Finding the Fourth Proportional to 302,358.15, 453,440.52 and 99,916.47

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Solution

The fourth proportional to 302,358.15, 453,440.52 and 99,916.47 is: 149,842.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,358.15 : 453,440.52 = 99,916.47 : x
  2. Step 2: Convert to fraction form
    302,358.15/453,440.52 = 99,916.47/x
  3. Step 3: Cross multiply
    302,358.15x = 453,440.52 × 99,916.47
  4. Step 4: Simplify right side
    302,358.15x = 45,306,176,113.36
  5. Step 5: Solve for x
    x = 45,306,176,113.36/302,358.15
  6. Step 6: Final answer
    x = 149,842.75

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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.