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Finding the Fourth Proportional to 304,040.80, 456,190.80 and 191,807.20

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Solution

The fourth proportional to 304,040.80, 456,190.80 and 191,807.20 is: 287,792.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,040.80 : 456,190.80 = 191,807.20 : x
  2. Step 2: Convert to fraction form
    304,040.80/456,190.80 = 191,807.20/x
  3. Step 3: Cross multiply
    304,040.80x = 456,190.80 × 191,807.20
  4. Step 4: Simplify right side
    304,040.80x = 87,500,680,013.76
  5. Step 5: Solve for x
    x = 87,500,680,013.76/304,040.80
  6. Step 6: Final answer
    x = 287,792.56

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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.