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Finding the Fourth Proportional to 280,614.36, 387,124.44 and 167,371.50

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Solution

The fourth proportional to 280,614.36, 387,124.44 and 167,371.50 is: 230,899.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,614.36 : 387,124.44 = 167,371.50 : x
  2. Step 2: Convert to fraction form
    280,614.36/387,124.44 = 167,371.50/x
  3. Step 3: Cross multiply
    280,614.36x = 387,124.44 × 167,371.50
  4. Step 4: Simplify right side
    280,614.36x = 64,793,598,209.46
  5. Step 5: Solve for x
    x = 64,793,598,209.46/280,614.36
  6. Step 6: Final answer
    x = 230,899.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.