Home / 208,857.11-288,223.10-113,363.83

Finding the Fourth Proportional to 208,857.11, 288,223.10 and 113,363.83

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Solution

The fourth proportional to 208,857.11, 288,223.10 and 113,363.83 is: 156,442.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,857.11 : 288,223.10 = 113,363.83 : x
  2. Step 2: Convert to fraction form
    208,857.11/288,223.10 = 113,363.83/x
  3. Step 3: Cross multiply
    208,857.11x = 288,223.10 × 113,363.83
  4. Step 4: Simplify right side
    208,857.11x = 32,674,074,510.47
  5. Step 5: Solve for x
    x = 32,674,074,510.47/208,857.11
  6. Step 6: Final answer
    x = 156,442.24

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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.