Home / 260,340.56-390,065.02-142,094.88

Finding the Fourth Proportional to 260,340.56, 390,065.02 and 142,094.88

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Solution

The fourth proportional to 260,340.56, 390,065.02 and 142,094.88 is: 212,898.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,340.56 : 390,065.02 = 142,094.88 : x
  2. Step 2: Convert to fraction form
    260,340.56/390,065.02 = 142,094.88/x
  3. Step 3: Cross multiply
    260,340.56x = 390,065.02 × 142,094.88
  4. Step 4: Simplify right side
    260,340.56x = 55,426,242,209.10
  5. Step 5: Solve for x
    x = 55,426,242,209.10/260,340.56
  6. Step 6: Final answer
    x = 212,898.99

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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.