Home / 208,983.40-288,394.49-113,490.77

Finding the Fourth Proportional to 208,983.40, 288,394.49 and 113,490.77

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Solution

The fourth proportional to 208,983.40, 288,394.49 and 113,490.77 is: 156,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,983.40 : 288,394.49 = 113,490.77 : x
  2. Step 2: Convert to fraction form
    208,983.40/288,394.49 = 113,490.77/x
  3. Step 3: Cross multiply
    208,983.40x = 288,394.49 × 113,490.77
  4. Step 4: Simplify right side
    208,983.40x = 32,730,111,575.61
  5. Step 5: Solve for x
    x = 32,730,111,575.61/208,983.40
  6. Step 6: Final answer
    x = 156,615.85

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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.