Home / 354,267.75-489,064.03-245,454.59

Finding the Fourth Proportional to 354,267.75, 489,064.03 and 245,454.59

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Solution

The fourth proportional to 354,267.75, 489,064.03 and 245,454.59 is: 338,848.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,267.75 : 489,064.03 = 245,454.59 : x
  2. Step 2: Convert to fraction form
    354,267.75/489,064.03 = 245,454.59/x
  3. Step 3: Cross multiply
    354,267.75x = 489,064.03 × 245,454.59
  4. Step 4: Simplify right side
    354,267.75x = 120,043,011,576.42
  5. Step 5: Solve for x
    x = 120,043,011,576.42/354,267.75
  6. Step 6: Final answer
    x = 338,848.26

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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.