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Finding the Fourth Proportional to 367,155.48, 550,738.08 and 142,528.71

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Solution

The fourth proportional to 367,155.48, 550,738.08 and 142,528.71 is: 213,794.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,155.48 : 550,738.08 = 142,528.71 : x
  2. Step 2: Convert to fraction form
    367,155.48/550,738.08 = 142,528.71/x
  3. Step 3: Cross multiply
    367,155.48x = 550,738.08 × 142,528.71
  4. Step 4: Simplify right side
    367,155.48x = 78,495,988,090.28
  5. Step 5: Solve for x
    x = 78,495,988,090.28/367,155.48
  6. Step 6: Final answer
    x = 213,794.95

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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.