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Finding the Fourth Proportional to 408,088.20, 612,132.30 and 242,200.20

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Solution

The fourth proportional to 408,088.20, 612,132.30 and 242,200.20 is: 363,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,088.20 : 612,132.30 = 242,200.20 : x
  2. Step 2: Convert to fraction form
    408,088.20/612,132.30 = 242,200.20/x
  3. Step 3: Cross multiply
    408,088.20x = 612,132.30 × 242,200.20
  4. Step 4: Simplify right side
    408,088.20x = 148,258,565,486.46
  5. Step 5: Solve for x
    x = 148,258,565,486.46/408,088.20
  6. Step 6: Final answer
    x = 363,300.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.