Home / 386,530.02-579,834.78-133,810.02

Finding the Fourth Proportional to 386,530.02, 579,834.78 and 133,810.02

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Solution

The fourth proportional to 386,530.02, 579,834.78 and 133,810.02 is: 200,728.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,530.02 : 579,834.78 = 133,810.02 : x
  2. Step 2: Convert to fraction form
    386,530.02/579,834.78 = 133,810.02/x
  3. Step 3: Cross multiply
    386,530.02x = 579,834.78 × 133,810.02
  4. Step 4: Simplify right side
    386,530.02x = 77,587,703,508.50
  5. Step 5: Solve for x
    x = 77,587,703,508.50/386,530.02
  6. Step 6: Final answer
    x = 200,728.79

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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.