Home / 216,961.71-324,123.12-140,436.82

Finding the Fourth Proportional to 216,961.71, 324,123.12 and 140,436.82

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Solution

The fourth proportional to 216,961.71, 324,123.12 and 140,436.82 is: 209,801.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,961.71 : 324,123.12 = 140,436.82 : x
  2. Step 2: Convert to fraction form
    216,961.71/324,123.12 = 140,436.82/x
  3. Step 3: Cross multiply
    216,961.71x = 324,123.12 × 140,436.82
  4. Step 4: Simplify right side
    216,961.71x = 45,518,820,261.28
  5. Step 5: Solve for x
    x = 45,518,820,261.28/216,961.71
  6. Step 6: Final answer
    x = 209,801.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.