Home / 280,370.34-386,897.55-159,500.22

Finding the Fourth Proportional to 280,370.34, 386,897.55 and 159,500.22

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Solution

The fourth proportional to 280,370.34, 386,897.55 and 159,500.22 is: 220,102.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,370.34 : 386,897.55 = 159,500.22 : x
  2. Step 2: Convert to fraction form
    280,370.34/386,897.55 = 159,500.22/x
  3. Step 3: Cross multiply
    280,370.34x = 386,897.55 × 159,500.22
  4. Step 4: Simplify right side
    280,370.34x = 61,710,244,342.46
  5. Step 5: Solve for x
    x = 61,710,244,342.46/280,370.34
  6. Step 6: Final answer
    x = 220,102.61

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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.