Home / 240,206.81-331,518.33-138,230.18

Finding the Fourth Proportional to 240,206.81, 331,518.33 and 138,230.18

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Solution

The fourth proportional to 240,206.81, 331,518.33 and 138,230.18 is: 190,776.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,206.81 : 331,518.33 = 138,230.18 : x
  2. Step 2: Convert to fraction form
    240,206.81/331,518.33 = 138,230.18/x
  3. Step 3: Cross multiply
    240,206.81x = 331,518.33 × 138,230.18
  4. Step 4: Simplify right side
    240,206.81x = 45,825,838,429.20
  5. Step 5: Solve for x
    x = 45,825,838,429.20/240,206.81
  6. Step 6: Final answer
    x = 190,776.60

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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.