Home / 280,238.14-386,737.96-152,920.72

Finding the Fourth Proportional to 280,238.14, 386,737.96 and 152,920.72

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Solution

The fourth proportional to 280,238.14, 386,737.96 and 152,920.72 is: 211,035.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,238.14 : 386,737.96 = 152,920.72 : x
  2. Step 2: Convert to fraction form
    280,238.14/386,737.96 = 152,920.72/x
  3. Step 3: Cross multiply
    280,238.14x = 386,737.96 × 152,920.72
  4. Step 4: Simplify right side
    280,238.14x = 59,140,245,360.84
  5. Step 5: Solve for x
    x = 59,140,245,360.84/280,238.14
  6. Step 6: Final answer
    x = 211,035.68

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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.