Home / 260,534.16-390,987.81-110,879.55

Finding the Fourth Proportional to 260,534.16, 390,987.81 and 110,879.55

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Solution

The fourth proportional to 260,534.16, 390,987.81 and 110,879.55 is: 166,398.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,534.16 : 390,987.81 = 110,879.55 : x
  2. Step 2: Convert to fraction form
    260,534.16/390,987.81 = 110,879.55/x
  3. Step 3: Cross multiply
    260,534.16x = 390,987.81 × 110,879.55
  4. Step 4: Simplify right side
    260,534.16x = 43,352,552,428.29
  5. Step 5: Solve for x
    x = 43,352,552,428.29/260,534.16
  6. Step 6: Final answer
    x = 166,398.73

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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.