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Finding the Fourth Proportional to 304,028.40, 456,001.20 and 79,406.40

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Solution

The fourth proportional to 304,028.40, 456,001.20 and 79,406.40 is: 119,098.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,028.40 : 456,001.20 = 79,406.40 : x
  2. Step 2: Convert to fraction form
    304,028.40/456,001.20 = 79,406.40/x
  3. Step 3: Cross multiply
    304,028.40x = 456,001.20 × 79,406.40
  4. Step 4: Simplify right side
    304,028.40x = 36,209,413,687.68
  5. Step 5: Solve for x
    x = 36,209,413,687.68/304,028.40
  6. Step 6: Final answer
    x = 119,098.79

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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.