Home / 280,225.64-386,744.82-159,385.16

Finding the Fourth Proportional to 280,225.64, 386,744.82 and 159,385.16

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Solution

The fourth proportional to 280,225.64, 386,744.82 and 159,385.16 is: 219,970.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,225.64 : 386,744.82 = 159,385.16 : x
  2. Step 2: Convert to fraction form
    280,225.64/386,744.82 = 159,385.16/x
  3. Step 3: Cross multiply
    280,225.64x = 386,744.82 × 159,385.16
  4. Step 4: Simplify right side
    280,225.64x = 61,641,385,014.87
  5. Step 5: Solve for x
    x = 61,641,385,014.87/280,225.64
  6. Step 6: Final answer
    x = 219,970.54

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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.