Home / 354,272.27-489,070.27-245,459.13

Finding the Fourth Proportional to 354,272.27, 489,070.27 and 245,459.13

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Solution

The fourth proportional to 354,272.27, 489,070.27 and 245,459.13 is: 338,854.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,272.27 : 489,070.27 = 245,459.13 : x
  2. Step 2: Convert to fraction form
    354,272.27/489,070.27 = 245,459.13/x
  3. Step 3: Cross multiply
    354,272.27x = 489,070.27 × 245,459.13
  4. Step 4: Simplify right side
    354,272.27x = 120,046,761,455.88
  5. Step 5: Solve for x
    x = 120,046,761,455.88/354,272.27
  6. Step 6: Final answer
    x = 338,854.53

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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.