Home / 208,180.28-287,288.94-112,686.68

Finding the Fourth Proportional to 208,180.28, 287,288.94 and 112,686.68

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Solution

The fourth proportional to 208,180.28, 287,288.94 and 112,686.68 is: 155,507.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,180.28 : 287,288.94 = 112,686.68 : x
  2. Step 2: Convert to fraction form
    208,180.28/287,288.94 = 112,686.68/x
  3. Step 3: Cross multiply
    208,180.28x = 287,288.94 × 112,686.68
  4. Step 4: Simplify right side
    208,180.28x = 32,373,636,849.32
  5. Step 5: Solve for x
    x = 32,373,636,849.32/208,180.28
  6. Step 6: Final answer
    x = 155,507.70

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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.