Home / 279,870.21-386,219.98-152,545.80

Finding the Fourth Proportional to 279,870.21, 386,219.98 and 152,545.80

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Solution

The fourth proportional to 279,870.21, 386,219.98 and 152,545.80 is: 210,512.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,870.21 : 386,219.98 = 152,545.80 : x
  2. Step 2: Convert to fraction form
    279,870.21/386,219.98 = 152,545.80/x
  3. Step 3: Cross multiply
    279,870.21x = 386,219.98 × 152,545.80
  4. Step 4: Simplify right side
    279,870.21x = 58,916,235,825.08
  5. Step 5: Solve for x
    x = 58,916,235,825.08/279,870.21
  6. Step 6: Final answer
    x = 210,512.71

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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.