Home / 286,870.50-395,881.29-159,543.36

Finding the Fourth Proportional to 286,870.50, 395,881.29 and 159,543.36

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Solution

The fourth proportional to 286,870.50, 395,881.29 and 159,543.36 is: 220,169.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,870.50 : 395,881.29 = 159,543.36 : x
  2. Step 2: Convert to fraction form
    286,870.50/395,881.29 = 159,543.36/x
  3. Step 3: Cross multiply
    286,870.50x = 395,881.29 × 159,543.36
  4. Step 4: Simplify right side
    286,870.50x = 63,160,231,167.73
  5. Step 5: Solve for x
    x = 63,160,231,167.73/286,870.50
  6. Step 6: Final answer
    x = 220,169.84

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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.