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Finding the Fourth Proportional to 208,366.71, 287,545.79 and 112,873.79

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Solution

The fourth proportional to 208,366.71, 287,545.79 and 112,873.79 is: 155,765.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,366.71 : 287,545.79 = 112,873.79 : x
  2. Step 2: Convert to fraction form
    208,366.71/287,545.79 = 112,873.79/x
  3. Step 3: Cross multiply
    208,366.71x = 287,545.79 × 112,873.79
  4. Step 4: Simplify right side
    208,366.71x = 32,456,381,113.75
  5. Step 5: Solve for x
    x = 32,456,381,113.75/208,366.71
  6. Step 6: Final answer
    x = 155,765.67

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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.