Home / 231,039.04-318,657.36-159,538.72

Finding the Fourth Proportional to 231,039.04, 318,657.36 and 159,538.72

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Solution

The fourth proportional to 231,039.04, 318,657.36 and 159,538.72 is: 220,041.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,039.04 : 318,657.36 = 159,538.72 : x
  2. Step 2: Convert to fraction form
    231,039.04/318,657.36 = 159,538.72/x
  3. Step 3: Cross multiply
    231,039.04x = 318,657.36 × 159,538.72
  4. Step 4: Simplify right side
    231,039.04x = 50,838,187,332.98
  5. Step 5: Solve for x
    x = 50,838,187,332.98/231,039.04
  6. Step 6: Final answer
    x = 220,041.55

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1.5x scale

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.