Home / 280,688.55-387,521.81-182,665.18

Finding the Fourth Proportional to 280,688.55, 387,521.81 and 182,665.18

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Solution

The fourth proportional to 280,688.55, 387,521.81 and 182,665.18 is: 252,189.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,688.55 : 387,521.81 = 182,665.18 : x
  2. Step 2: Convert to fraction form
    280,688.55/387,521.81 = 182,665.18/x
  3. Step 3: Cross multiply
    280,688.55x = 387,521.81 × 182,665.18
  4. Step 4: Simplify right side
    280,688.55x = 70,786,741,177.58
  5. Step 5: Solve for x
    x = 70,786,741,177.58/280,688.55
  6. Step 6: Final answer
    x = 252,189.63

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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.