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Finding the Fourth Proportional to 280,218, 386,700.88 and 179,616.24

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Solution

The fourth proportional to 280,218, 386,700.88 and 179,616.24 is: 247,870.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,218 : 386,700.88 = 179,616.24 : x
  2. Step 2: Convert to fraction form
    280,218/386,700.88 = 179,616.24/x
  3. Step 3: Cross multiply
    280,218x = 386,700.88 × 179,616.24
  4. Step 4: Simplify right side
    280,218x = 69,457,758,070.29
  5. Step 5: Solve for x
    x = 69,457,758,070.29/280,218
  6. Step 6: Final answer
    x = 247,870.44

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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.