Home / 285,233.95-393,607.86-156,147.69

Finding the Fourth Proportional to 285,233.95, 393,607.86 and 156,147.69

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Solution

The fourth proportional to 285,233.95, 393,607.86 and 156,147.69 is: 215,475.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,233.95 : 393,607.86 = 156,147.69 : x
  2. Step 2: Convert to fraction form
    285,233.95/393,607.86 = 156,147.69/x
  3. Step 3: Cross multiply
    285,233.95x = 393,607.86 × 156,147.69
  4. Step 4: Simplify right side
    285,233.95x = 61,460,958,104.84
  5. Step 5: Solve for x
    x = 61,460,958,104.84/285,233.95
  6. Step 6: Final answer
    x = 215,475.61

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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.