Home / 272,211.60-408,025.80-122,426.40

Finding the Fourth Proportional to 272,211.60, 408,025.80 and 122,426.40

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Solution

The fourth proportional to 272,211.60, 408,025.80 and 122,426.40 is: 183,508.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,211.60 : 408,025.80 = 122,426.40 : x
  2. Step 2: Convert to fraction form
    272,211.60/408,025.80 = 122,426.40/x
  3. Step 3: Cross multiply
    272,211.60x = 408,025.80 × 122,426.40
  4. Step 4: Simplify right side
    272,211.60x = 49,953,129,801.12
  5. Step 5: Solve for x
    x = 49,953,129,801.12/272,211.60
  6. Step 6: Final answer
    x = 183,508.45

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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.