Home / 260,208.28-390,443.58-102,549.88

Finding the Fourth Proportional to 260,208.28, 390,443.58 and 102,549.88

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Solution

The fourth proportional to 260,208.28, 390,443.58 and 102,549.88 is: 153,876.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,208.28 : 390,443.58 = 102,549.88 : x
  2. Step 2: Convert to fraction form
    260,208.28/390,443.58 = 102,549.88/x
  3. Step 3: Cross multiply
    260,208.28x = 390,443.58 × 102,549.88
  4. Step 4: Simplify right side
    260,208.28x = 40,039,942,275.77
  5. Step 5: Solve for x
    x = 40,039,942,275.77/260,208.28
  6. Step 6: Final answer
    x = 153,876.51

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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.