Home / 278,101.17-383,756.00-157,225.68

Finding the Fourth Proportional to 278,101.17, 383,756.00 and 157,225.68

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Solution

The fourth proportional to 278,101.17, 383,756.00 and 157,225.68 is: 216,958.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,101.17 : 383,756.00 = 157,225.68 : x
  2. Step 2: Convert to fraction form
    278,101.17/383,756.00 = 157,225.68/x
  3. Step 3: Cross multiply
    278,101.17x = 383,756.00 × 157,225.68
  4. Step 4: Simplify right side
    278,101.17x = 60,336,297,267.95
  5. Step 5: Solve for x
    x = 60,336,297,267.95/278,101.17
  6. Step 6: Final answer
    x = 216,958.08

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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.