Home / 260,117.12-358,961.28-140,885.12

Finding the Fourth Proportional to 260,117.12, 358,961.28 and 140,885.12

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Solution

The fourth proportional to 260,117.12, 358,961.28 and 140,885.12 is: 194,421.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,117.12 : 358,961.28 = 140,885.12 : x
  2. Step 2: Convert to fraction form
    260,117.12/358,961.28 = 140,885.12/x
  3. Step 3: Cross multiply
    260,117.12x = 358,961.28 × 140,885.12
  4. Step 4: Simplify right side
    260,117.12x = 50,572,303,008.15
  5. Step 5: Solve for x
    x = 50,572,303,008.15/260,117.12
  6. Step 6: Final answer
    x = 194,421.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.