Home / 261,230.81-391,518.26-141,282.98

Finding the Fourth Proportional to 261,230.81, 391,518.26 and 141,282.98

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Solution

The fourth proportional to 261,230.81, 391,518.26 and 141,282.98 is: 211,747.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,230.81 : 391,518.26 = 141,282.98 : x
  2. Step 2: Convert to fraction form
    261,230.81/391,518.26 = 141,282.98/x
  3. Step 3: Cross multiply
    261,230.81x = 391,518.26 × 141,282.98
  4. Step 4: Simplify right side
    261,230.81x = 55,314,866,769.60
  5. Step 5: Solve for x
    x = 55,314,866,769.60/261,230.81
  6. Step 6: Final answer
    x = 211,747.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.