Home / 260,538.84-390,855.06-92,156.76

Finding the Fourth Proportional to 260,538.84, 390,855.06 and 92,156.76

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Solution

The fourth proportional to 260,538.84, 390,855.06 and 92,156.76 is: 138,251.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,538.84 : 390,855.06 = 92,156.76 : x
  2. Step 2: Convert to fraction form
    260,538.84/390,855.06 = 92,156.76/x
  3. Step 3: Cross multiply
    260,538.84x = 390,855.06 × 92,156.76
  4. Step 4: Simplify right side
    260,538.84x = 36,019,935,959.21
  5. Step 5: Solve for x
    x = 36,019,935,959.21/260,538.84
  6. Step 6: Final answer
    x = 138,251.69

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1.5x scale

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.