Home / 278,045.47-383,698.68-157,182.76

Finding the Fourth Proportional to 278,045.47, 383,698.68 and 157,182.76

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Solution

The fourth proportional to 278,045.47, 383,698.68 and 157,182.76 is: 216,909.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,045.47 : 383,698.68 = 157,182.76 : x
  2. Step 2: Convert to fraction form
    278,045.47/383,698.68 = 157,182.76/x
  3. Step 3: Cross multiply
    278,045.47x = 383,698.68 × 157,182.76
  4. Step 4: Simplify right side
    278,045.47x = 60,310,817,530.76
  5. Step 5: Solve for x
    x = 60,310,817,530.76/278,045.47
  6. Step 6: Final answer
    x = 216,909.91

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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.