Home / 260,488.29-390,740.55-89,708.25

Finding the Fourth Proportional to 260,488.29, 390,740.55 and 89,708.25

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Solution

The fourth proportional to 260,488.29, 390,740.55 and 89,708.25 is: 134,565.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,488.29 : 390,740.55 = 89,708.25 : x
  2. Step 2: Convert to fraction form
    260,488.29/390,740.55 = 89,708.25/x
  3. Step 3: Cross multiply
    260,488.29x = 390,740.55 × 89,708.25
  4. Step 4: Simplify right side
    260,488.29x = 35,052,650,944.54
  5. Step 5: Solve for x
    x = 35,052,650,944.54/260,488.29
  6. Step 6: Final answer
    x = 134,565.17

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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.