Home / 280,261.93-386,769.69-152,945.74

Finding the Fourth Proportional to 280,261.93, 386,769.69 and 152,945.74

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Solution

The fourth proportional to 280,261.93, 386,769.69 and 152,945.74 is: 211,069.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,261.93 : 386,769.69 = 152,945.74 : x
  2. Step 2: Convert to fraction form
    280,261.93/386,769.69 = 152,945.74/x
  3. Step 3: Cross multiply
    280,261.93x = 386,769.69 × 152,945.74
  4. Step 4: Simplify right side
    280,261.93x = 59,154,776,446.62
  5. Step 5: Solve for x
    x = 59,154,776,446.62/280,261.93
  6. Step 6: Final answer
    x = 211,069.61

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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.