Home / 280,272.84-386,784.73-152,956.62

Finding the Fourth Proportional to 280,272.84, 386,784.73 and 152,956.62

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Solution

The fourth proportional to 280,272.84, 386,784.73 and 152,956.62 is: 211,084.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,272.84 : 386,784.73 = 152,956.62 : x
  2. Step 2: Convert to fraction form
    280,272.84/386,784.73 = 152,956.62/x
  3. Step 3: Cross multiply
    280,272.84x = 386,784.73 × 152,956.62
  4. Step 4: Simplify right side
    280,272.84x = 59,161,283,034.49
  5. Step 5: Solve for x
    x = 59,161,283,034.49/280,272.84
  6. Step 6: Final answer
    x = 211,084.61

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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.