Home / 285,254.72-393,651.53-156,201.32

Finding the Fourth Proportional to 285,254.72, 393,651.53 and 156,201.32

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Solution

The fourth proportional to 285,254.72, 393,651.53 and 156,201.32 is: 215,557.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,254.72 : 393,651.53 = 156,201.32 : x
  2. Step 2: Convert to fraction form
    285,254.72/393,651.53 = 156,201.32/x
  3. Step 3: Cross multiply
    285,254.72x = 393,651.53 × 156,201.32
  4. Step 4: Simplify right side
    285,254.72x = 61,488,885,856.76
  5. Step 5: Solve for x
    x = 61,488,885,856.76/285,254.72
  6. Step 6: Final answer
    x = 215,557.82

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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.