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Finding the Fourth Proportional to 208,137.04, 287,229.96 and 112,643.68

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Solution

The fourth proportional to 208,137.04, 287,229.96 and 112,643.68 is: 155,448.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,137.04 : 287,229.96 = 112,643.68 : x
  2. Step 2: Convert to fraction form
    208,137.04/287,229.96 = 112,643.68/x
  3. Step 3: Cross multiply
    208,137.04x = 287,229.96 × 112,643.68
  4. Step 4: Simplify right side
    208,137.04x = 32,354,639,700.65
  5. Step 5: Solve for x
    x = 32,354,639,700.65/208,137.04
  6. Step 6: Final answer
    x = 155,448.74

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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.