Home / 354,690.24-489,457.20-193,542.72

Finding the Fourth Proportional to 354,690.24, 489,457.20 and 193,542.72

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Solution

The fourth proportional to 354,690.24, 489,457.20 and 193,542.72 is: 267,080.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,690.24 : 489,457.20 = 193,542.72 : x
  2. Step 2: Convert to fraction form
    354,690.24/489,457.20 = 193,542.72/x
  3. Step 3: Cross multiply
    354,690.24x = 489,457.20 × 193,542.72
  4. Step 4: Simplify right side
    354,690.24x = 94,730,877,811.58
  5. Step 5: Solve for x
    x = 94,730,877,811.58/354,690.24
  6. Step 6: Final answer
    x = 267,080.59

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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.