Home / 280,848.42-387,476.19-159,904.15

Finding the Fourth Proportional to 280,848.42, 387,476.19 and 159,904.15

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Solution

The fourth proportional to 280,848.42, 387,476.19 and 159,904.15 is: 220,613.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,848.42 : 387,476.19 = 159,904.15 : x
  2. Step 2: Convert to fraction form
    280,848.42/387,476.19 = 159,904.15/x
  3. Step 3: Cross multiply
    280,848.42x = 387,476.19 × 159,904.15
  4. Step 4: Simplify right side
    280,848.42x = 61,959,049,838.50
  5. Step 5: Solve for x
    x = 61,959,049,838.50/280,848.42
  6. Step 6: Final answer
    x = 220,613.85

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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.