Home / 285,212.74-393,598.23-156,149.04

Finding the Fourth Proportional to 285,212.74, 393,598.23 and 156,149.04

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Solution

The fourth proportional to 285,212.74, 393,598.23 and 156,149.04 is: 215,488.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,212.74 : 393,598.23 = 156,149.04 : x
  2. Step 2: Convert to fraction form
    285,212.74/393,598.23 = 156,149.04/x
  3. Step 3: Cross multiply
    285,212.74x = 393,598.23 × 156,149.04
  4. Step 4: Simplify right side
    285,212.74x = 61,459,985,760.20
  5. Step 5: Solve for x
    x = 61,459,985,760.20/285,212.74
  6. Step 6: Final answer
    x = 215,488.22

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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.