Home / 260,484.12-390,460.50-102,648.60

Finding the Fourth Proportional to 260,484.12, 390,460.50 and 102,648.60

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Solution

The fourth proportional to 260,484.12, 390,460.50 and 102,648.60 is: 153,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,484.12 : 390,460.50 = 102,648.60 : x
  2. Step 2: Convert to fraction form
    260,484.12/390,460.50 = 102,648.60/x
  3. Step 3: Cross multiply
    260,484.12x = 390,460.50 × 102,648.60
  4. Step 4: Simplify right side
    260,484.12x = 40,080,223,680.30
  5. Step 5: Solve for x
    x = 40,080,223,680.30/260,484.12
  6. Step 6: Final answer
    x = 153,868.20

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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.