Home / 208,853.83-288,218.55-113,360.50

Finding the Fourth Proportional to 208,853.83, 288,218.55 and 113,360.50

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Solution

The fourth proportional to 208,853.83, 288,218.55 and 113,360.50 is: 156,437.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,853.83 : 288,218.55 = 113,360.50 : x
  2. Step 2: Convert to fraction form
    208,853.83/288,218.55 = 113,360.50/x
  3. Step 3: Cross multiply
    208,853.83x = 288,218.55 × 113,360.50
  4. Step 4: Simplify right side
    208,853.83x = 32,672,598,937.28
  5. Step 5: Solve for x
    x = 32,672,598,937.28/208,853.83
  6. Step 6: Final answer
    x = 156,437.63

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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.