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Finding the Fourth Proportional to 354,750.12, 489,336.23 and 252,808.25

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Solution

The fourth proportional to 354,750.12, 489,336.23 and 252,808.25 is: 348,719.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,750.12 : 489,336.23 = 252,808.25 : x
  2. Step 2: Convert to fraction form
    354,750.12/489,336.23 = 252,808.25/x
  3. Step 3: Cross multiply
    354,750.12x = 489,336.23 × 252,808.25
  4. Step 4: Simplify right side
    354,750.12x = 123,708,232,257.18
  5. Step 5: Solve for x
    x = 123,708,232,257.18/354,750.12
  6. Step 6: Final answer
    x = 348,719.35

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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.