Home / 304,121.05-455,864.19-135,720.16

Finding the Fourth Proportional to 304,121.05, 455,864.19 and 135,720.16

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Solution

The fourth proportional to 304,121.05, 455,864.19 and 135,720.16 is: 203,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,121.05 : 455,864.19 = 135,720.16 : x
  2. Step 2: Convert to fraction form
    304,121.05/455,864.19 = 135,720.16/x
  3. Step 3: Cross multiply
    304,121.05x = 455,864.19 × 135,720.16
  4. Step 4: Simplify right side
    304,121.05x = 61,869,960,805.07
  5. Step 5: Solve for x
    x = 61,869,960,805.07/304,121.05
  6. Step 6: Final answer
    x = 203,438.60

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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.