Home / 260,315.64-390,132.18-148,047.48

Finding the Fourth Proportional to 260,315.64, 390,132.18 and 148,047.48

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Solution

The fourth proportional to 260,315.64, 390,132.18 and 148,047.48 is: 221,877.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,315.64 : 390,132.18 = 148,047.48 : x
  2. Step 2: Convert to fraction form
    260,315.64/390,132.18 = 148,047.48/x
  3. Step 3: Cross multiply
    260,315.64x = 390,132.18 × 148,047.48
  4. Step 4: Simplify right side
    260,315.64x = 57,758,086,115.91
  5. Step 5: Solve for x
    x = 57,758,086,115.91/260,315.64
  6. Step 6: Final answer
    x = 221,877.13

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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.