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Finding the Fourth Proportional to 304,274.40, 456,411.60 and 198,520.80

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Solution

The fourth proportional to 304,274.40, 456,411.60 and 198,520.80 is: 297,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,274.40 : 456,411.60 = 198,520.80 : x
  2. Step 2: Convert to fraction form
    304,274.40/456,411.60 = 198,520.80/x
  3. Step 3: Cross multiply
    304,274.40x = 456,411.60 × 198,520.80
  4. Step 4: Simplify right side
    304,274.40x = 90,607,195,961.28
  5. Step 5: Solve for x
    x = 90,607,195,961.28/304,274.40
  6. Step 6: Final answer
    x = 297,781.20

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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.