Home / 260,213.28-390,451.08-102,554.88

Finding the Fourth Proportional to 260,213.28, 390,451.08 and 102,554.88

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Solution

The fourth proportional to 260,213.28, 390,451.08 and 102,554.88 is: 153,884.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,213.28 : 390,451.08 = 102,554.88 : x
  2. Step 2: Convert to fraction form
    260,213.28/390,451.08 = 102,554.88/x
  3. Step 3: Cross multiply
    260,213.28x = 390,451.08 × 102,554.88
  4. Step 4: Simplify right side
    260,213.28x = 40,042,663,655.27
  5. Step 5: Solve for x
    x = 40,042,663,655.27/260,213.28
  6. Step 6: Final answer
    x = 153,884.01

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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.