Home / 208,878.07-288,251.49-113,384.76

Finding the Fourth Proportional to 208,878.07, 288,251.49 and 113,384.76

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Solution

The fourth proportional to 208,878.07, 288,251.49 and 113,384.76 is: 156,470.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,878.07 : 288,251.49 = 113,384.76 : x
  2. Step 2: Convert to fraction form
    208,878.07/288,251.49 = 113,384.76/x
  3. Step 3: Cross multiply
    208,878.07x = 288,251.49 × 113,384.76
  4. Step 4: Simplify right side
    208,878.07x = 32,683,326,013.29
  5. Step 5: Solve for x
    x = 32,683,326,013.29/208,878.07
  6. Step 6: Final answer
    x = 156,470.83

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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.