Home / 205,214.79-307,928.76-155,280.04

Finding the Fourth Proportional to 205,214.79, 307,928.76 and 155,280.04

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Solution

The fourth proportional to 205,214.79, 307,928.76 and 155,280.04 is: 233,000.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,214.79 : 307,928.76 = 155,280.04 : x
  2. Step 2: Convert to fraction form
    205,214.79/307,928.76 = 155,280.04/x
  3. Step 3: Cross multiply
    205,214.79x = 307,928.76 × 155,280.04
  4. Step 4: Simplify right side
    205,214.79x = 47,815,190,169.95
  5. Step 5: Solve for x
    x = 47,815,190,169.95/205,214.79
  6. Step 6: Final answer
    x = 233,000.70

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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.