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Finding the Fourth Proportional to 280,148.98, 386,623.88 and 159,301.52

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Solution

The fourth proportional to 280,148.98, 386,623.88 and 159,301.52 is: 219,846.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,148.98 : 386,623.88 = 159,301.52 : x
  2. Step 2: Convert to fraction form
    280,148.98/386,623.88 = 159,301.52/x
  3. Step 3: Cross multiply
    280,148.98x = 386,623.88 × 159,301.52
  4. Step 4: Simplify right side
    280,148.98x = 61,589,771,752.30
  5. Step 5: Solve for x
    x = 61,589,771,752.30/280,148.98
  6. Step 6: Final answer
    x = 219,846.50

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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.