Home / 278,160.84-383,857.20-157,298.04

Finding the Fourth Proportional to 278,160.84, 383,857.20 and 157,298.04

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Solution

The fourth proportional to 278,160.84, 383,857.20 and 157,298.04 is: 217,068.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,160.84 : 383,857.20 = 157,298.04 : x
  2. Step 2: Convert to fraction form
    278,160.84/383,857.20 = 157,298.04/x
  3. Step 3: Cross multiply
    278,160.84x = 383,857.20 × 157,298.04
  4. Step 4: Simplify right side
    278,160.84x = 60,379,985,199.89
  5. Step 5: Solve for x
    x = 60,379,985,199.89/278,160.84
  6. Step 6: Final answer
    x = 217,068.60

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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.