Home / 280,241.14-386,742.10-152,923.72

Finding the Fourth Proportional to 280,241.14, 386,742.10 and 152,923.72

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Solution

The fourth proportional to 280,241.14, 386,742.10 and 152,923.72 is: 211,039.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,241.14 : 386,742.10 = 152,923.72 : x
  2. Step 2: Convert to fraction form
    280,241.14/386,742.10 = 152,923.72/x
  3. Step 3: Cross multiply
    280,241.14x = 386,742.10 × 152,923.72
  4. Step 4: Simplify right side
    280,241.14x = 59,142,040,612.61
  5. Step 5: Solve for x
    x = 59,142,040,612.61/280,241.14
  6. Step 6: Final answer
    x = 211,039.82

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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.