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Finding the Fourth Proportional to 208,118.01, 287,204.88 and 112,626.69

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Solution

The fourth proportional to 208,118.01, 287,204.88 and 112,626.69 is: 155,425.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,118.01 : 287,204.88 = 112,626.69 : x
  2. Step 2: Convert to fraction form
    208,118.01/287,204.88 = 112,626.69/x
  3. Step 3: Cross multiply
    208,118.01x = 287,204.88 × 112,626.69
  4. Step 4: Simplify right side
    208,118.01x = 32,346,934,986.25
  5. Step 5: Solve for x
    x = 32,346,934,986.25/208,118.01
  6. Step 6: Final answer
    x = 155,425.93

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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.