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Finding the Fourth Proportional to 208,057.39, 287,117.99 and 112,562.04

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Solution

The fourth proportional to 208,057.39, 287,117.99 and 112,562.04 is: 155,334.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,057.39 : 287,117.99 = 112,562.04 : x
  2. Step 2: Convert to fraction form
    208,057.39/287,117.99 = 112,562.04/x
  3. Step 3: Cross multiply
    208,057.39x = 287,117.99 × 112,562.04
  4. Step 4: Simplify right side
    208,057.39x = 32,318,586,629.21
  5. Step 5: Solve for x
    x = 32,318,586,629.21/208,057.39
  6. Step 6: Final answer
    x = 155,334.96

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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.