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Finding the Fourth Proportional to 304,293.80, 456,440.70 and 198,005.60

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Solution

The fourth proportional to 304,293.80, 456,440.70 and 198,005.60 is: 297,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,293.80 : 456,440.70 = 198,005.60 : x
  2. Step 2: Convert to fraction form
    304,293.80/456,440.70 = 198,005.60/x
  3. Step 3: Cross multiply
    304,293.80x = 456,440.70 × 198,005.60
  4. Step 4: Simplify right side
    304,293.80x = 90,377,814,667.92
  5. Step 5: Solve for x
    x = 90,377,814,667.92/304,293.80
  6. Step 6: Final answer
    x = 297,008.40

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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.