Home / 280,272.34-386,784.04-152,956.12

Finding the Fourth Proportional to 280,272.34, 386,784.04 and 152,956.12

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Solution

The fourth proportional to 280,272.34, 386,784.04 and 152,956.12 is: 211,083.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,272.34 : 386,784.04 = 152,956.12 : x
  2. Step 2: Convert to fraction form
    280,272.34/386,784.04 = 152,956.12/x
  3. Step 3: Cross multiply
    280,272.34x = 386,784.04 × 152,956.12
  4. Step 4: Simplify right side
    280,272.34x = 59,160,984,102.40
  5. Step 5: Solve for x
    x = 59,160,984,102.40/280,272.34
  6. Step 6: Final answer
    x = 211,083.92

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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.