Home / 208,721.50-288,036.24-113,228.20

Finding the Fourth Proportional to 208,721.50, 288,036.24 and 113,228.20

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Solution

The fourth proportional to 208,721.50, 288,036.24 and 113,228.20 is: 156,255.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,721.50 : 288,036.24 = 113,228.20 : x
  2. Step 2: Convert to fraction form
    208,721.50/288,036.24 = 113,228.20/x
  3. Step 3: Cross multiply
    208,721.50x = 288,036.24 × 113,228.20
  4. Step 4: Simplify right side
    208,721.50x = 32,613,824,989.97
  5. Step 5: Solve for x
    x = 32,613,824,989.97/208,721.50
  6. Step 6: Final answer
    x = 156,255.23

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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.