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Finding the Fourth Proportional to 208,049.88, 287,110.91 and 112,558.62

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Solution

The fourth proportional to 208,049.88, 287,110.91 and 112,558.62 is: 155,332.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,049.88 : 287,110.91 = 112,558.62 : x
  2. Step 2: Convert to fraction form
    208,049.88/287,110.91 = 112,558.62/x
  3. Step 3: Cross multiply
    208,049.88x = 287,110.91 × 112,558.62
  4. Step 4: Simplify right side
    208,049.88x = 32,316,807,816.54
  5. Step 5: Solve for x
    x = 32,316,807,816.54/208,049.88
  6. Step 6: Final answer
    x = 155,332.02

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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.