Home / 285,234.45-393,608.55-156,148.19

Finding the Fourth Proportional to 285,234.45, 393,608.55 and 156,148.19

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Solution

The fourth proportional to 285,234.45, 393,608.55 and 156,148.19 is: 215,476.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,234.45 : 393,608.55 = 156,148.19 : x
  2. Step 2: Convert to fraction form
    285,234.45/393,608.55 = 156,148.19/x
  3. Step 3: Cross multiply
    285,234.45x = 393,608.55 × 156,148.19
  4. Step 4: Simplify right side
    285,234.45x = 61,461,262,651.02
  5. Step 5: Solve for x
    x = 61,461,262,651.02/285,234.45
  6. Step 6: Final answer
    x = 215,476.30

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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.