Home / 207,278.19-310,982.90-74,155.50

Finding the Fourth Proportional to 207,278.19, 310,982.90 and 74,155.50

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Solution

The fourth proportional to 207,278.19, 310,982.90 and 74,155.50 is: 111,256.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,278.19 : 310,982.90 = 74,155.50 : x
  2. Step 2: Convert to fraction form
    207,278.19/310,982.90 = 74,155.50/x
  3. Step 3: Cross multiply
    207,278.19x = 310,982.90 × 74,155.50
  4. Step 4: Simplify right side
    207,278.19x = 23,061,092,070.17
  5. Step 5: Solve for x
    x = 23,061,092,070.17/207,278.19
  6. Step 6: Final answer
    x = 111,256.72

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1.5x scale

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.