Home / 354,269.25-489,066.11-245,456.10

Finding the Fourth Proportional to 354,269.25, 489,066.11 and 245,456.10

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Solution

The fourth proportional to 354,269.25, 489,066.11 and 245,456.10 is: 338,850.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,269.25 : 489,066.11 = 245,456.10 : x
  2. Step 2: Convert to fraction form
    354,269.25/489,066.11 = 245,456.10/x
  3. Step 3: Cross multiply
    354,269.25x = 489,066.11 × 245,456.10
  4. Step 4: Simplify right side
    354,269.25x = 120,044,258,775.49
  5. Step 5: Solve for x
    x = 120,044,258,775.49/354,269.25
  6. Step 6: Final answer
    x = 338,850.35

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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.