Home / 268,310.18-402,465.27-120,854.18

Finding the Fourth Proportional to 268,310.18, 402,465.27 and 120,854.18

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Solution

The fourth proportional to 268,310.18, 402,465.27 and 120,854.18 is: 181,281.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,310.18 : 402,465.27 = 120,854.18 : x
  2. Step 2: Convert to fraction form
    268,310.18/402,465.27 = 120,854.18/x
  3. Step 3: Cross multiply
    268,310.18x = 402,465.27 × 120,854.18
  4. Step 4: Simplify right side
    268,310.18x = 48,639,607,567.73
  5. Step 5: Solve for x
    x = 48,639,607,567.73/268,310.18
  6. Step 6: Final answer
    x = 181,281.26

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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.