Home / 472,139.28-651,531.72-268,189.56

Finding the Fourth Proportional to 472,139.28, 651,531.72 and 268,189.56

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Solution

The fourth proportional to 472,139.28, 651,531.72 and 268,189.56 is: 370,089.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,139.28 : 651,531.72 = 268,189.56 : x
  2. Step 2: Convert to fraction form
    472,139.28/651,531.72 = 268,189.56/x
  3. Step 3: Cross multiply
    472,139.28x = 651,531.72 × 268,189.56
  4. Step 4: Simplify right side
    472,139.28x = 174,734,005,312.84
  5. Step 5: Solve for x
    x = 174,734,005,312.84/472,139.28
  6. Step 6: Final answer
    x = 370,089.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.