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Finding the Fourth Proportional to 268,312.86, 370,190.90 and 160,843.68

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Solution

The fourth proportional to 268,312.86, 370,190.90 and 160,843.68 is: 221,915.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,312.86 : 370,190.90 = 160,843.68 : x
  2. Step 2: Convert to fraction form
    268,312.86/370,190.90 = 160,843.68/x
  3. Step 3: Cross multiply
    268,312.86x = 370,190.90 × 160,843.68
  4. Step 4: Simplify right side
    268,312.86x = 59,542,865,854.29
  5. Step 5: Solve for x
    x = 59,542,865,854.29/268,312.86
  6. Step 6: Final answer
    x = 221,915.81

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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.