Home / 287,912.01-431,868.02-147,581.13

Finding the Fourth Proportional to 287,912.01, 431,868.02 and 147,581.13

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Solution

The fourth proportional to 287,912.01, 431,868.02 and 147,581.13 is: 221,371.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,912.01 : 431,868.02 = 147,581.13 : x
  2. Step 2: Convert to fraction form
    287,912.01/431,868.02 = 147,581.13/x
  3. Step 3: Cross multiply
    287,912.01x = 431,868.02 × 147,581.13
  4. Step 4: Simplify right side
    287,912.01x = 63,735,569,664.56
  5. Step 5: Solve for x
    x = 63,735,569,664.56/287,912.01
  6. Step 6: Final answer
    x = 221,371.70

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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.