Home / 285,234.95-393,609.24-156,148.69

Finding the Fourth Proportional to 285,234.95, 393,609.24 and 156,148.69

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Solution

The fourth proportional to 285,234.95, 393,609.24 and 156,148.69 is: 215,476.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,234.95 : 393,609.24 = 156,148.69 : x
  2. Step 2: Convert to fraction form
    285,234.95/393,609.24 = 156,148.69/x
  3. Step 3: Cross multiply
    285,234.95x = 393,609.24 × 156,148.69
  4. Step 4: Simplify right side
    285,234.95x = 61,461,567,197.90
  5. Step 5: Solve for x
    x = 61,461,567,197.90/285,234.95
  6. Step 6: Final answer
    x = 215,476.99

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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.