Home / 278,973.96-385,026.13-170,141.47

Finding the Fourth Proportional to 278,973.96, 385,026.13 and 170,141.47

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Solution

The fourth proportional to 278,973.96, 385,026.13 and 170,141.47 is: 234,820.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,973.96 : 385,026.13 = 170,141.47 : x
  2. Step 2: Convert to fraction form
    278,973.96/385,026.13 = 170,141.47/x
  3. Step 3: Cross multiply
    278,973.96x = 385,026.13 × 170,141.47
  4. Step 4: Simplify right side
    278,973.96x = 65,508,911,746.61
  5. Step 5: Solve for x
    x = 65,508,911,746.61/278,973.96
  6. Step 6: Final answer
    x = 234,820.88

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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.