Home / 285,216.57-393,603.54-156,152.90

Finding the Fourth Proportional to 285,216.57, 393,603.54 and 156,152.90

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Solution

The fourth proportional to 285,216.57, 393,603.54 and 156,152.90 is: 215,493.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,216.57 : 393,603.54 = 156,152.90 : x
  2. Step 2: Convert to fraction form
    285,216.57/393,603.54 = 156,152.90/x
  3. Step 3: Cross multiply
    285,216.57x = 393,603.54 × 156,152.90
  4. Step 4: Simplify right side
    285,216.57x = 61,462,334,221.27
  5. Step 5: Solve for x
    x = 61,462,334,221.27/285,216.57
  6. Step 6: Final answer
    x = 215,493.56

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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.