Home / 278,511.32-384,237.98-157,624.90

Finding the Fourth Proportional to 278,511.32, 384,237.98 and 157,624.90

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Solution

The fourth proportional to 278,511.32, 384,237.98 and 157,624.90 is: 217,461.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,511.32 : 384,237.98 = 157,624.90 : x
  2. Step 2: Convert to fraction form
    278,511.32/384,237.98 = 157,624.90/x
  3. Step 3: Cross multiply
    278,511.32x = 384,237.98 × 157,624.90
  4. Step 4: Simplify right side
    278,511.32x = 60,565,473,173.70
  5. Step 5: Solve for x
    x = 60,565,473,173.70/278,511.32
  6. Step 6: Final answer
    x = 217,461.44

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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.