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Finding the Fourth Proportional to 338,809.20, 508,213.80 and 304,594.80

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Solution

The fourth proportional to 338,809.20, 508,213.80 and 304,594.80 is: 456,892.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,809.20 : 508,213.80 = 304,594.80 : x
  2. Step 2: Convert to fraction form
    338,809.20/508,213.80 = 304,594.80/x
  3. Step 3: Cross multiply
    338,809.20x = 508,213.80 × 304,594.80
  4. Step 4: Simplify right side
    338,809.20x = 154,799,280,768.24
  5. Step 5: Solve for x
    x = 154,799,280,768.24/338,809.20
  6. Step 6: Final answer
    x = 456,892.20

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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.