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Finding the Fourth Proportional to 185,376.63, 278,148.01 and 85,483.27

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Solution

The fourth proportional to 185,376.63, 278,148.01 and 85,483.27 is: 128,263.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,376.63 : 278,148.01 = 85,483.27 : x
  2. Step 2: Convert to fraction form
    185,376.63/278,148.01 = 85,483.27/x
  3. Step 3: Cross multiply
    185,376.63x = 278,148.01 × 85,483.27
  4. Step 4: Simplify right side
    185,376.63x = 23,777,002,875.97
  5. Step 5: Solve for x
    x = 23,777,002,875.97/185,376.63
  6. Step 6: Final answer
    x = 128,263.22

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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.