Home / 260,029.20-390,173.40-147,795.60

Finding the Fourth Proportional to 260,029.20, 390,173.40 and 147,795.60

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Solution

The fourth proportional to 260,029.20, 390,173.40 and 147,795.60 is: 221,767.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,029.20 : 390,173.40 = 147,795.60 : x
  2. Step 2: Convert to fraction form
    260,029.20/390,173.40 = 147,795.60/x
  3. Step 3: Cross multiply
    260,029.20x = 390,173.40 × 147,795.60
  4. Step 4: Simplify right side
    260,029.20x = 57,665,911,757.04
  5. Step 5: Solve for x
    x = 57,665,911,757.04/260,029.20
  6. Step 6: Final answer
    x = 221,767.06

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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.