Home / 388,152.25-582,044.13-135,402.03

Finding the Fourth Proportional to 388,152.25, 582,044.13 and 135,402.03

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Solution

The fourth proportional to 388,152.25, 582,044.13 and 135,402.03 is: 203,038.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,152.25 : 582,044.13 = 135,402.03 : x
  2. Step 2: Convert to fraction form
    388,152.25/582,044.13 = 135,402.03/x
  3. Step 3: Cross multiply
    388,152.25x = 582,044.13 × 135,402.03
  4. Step 4: Simplify right side
    388,152.25x = 78,809,956,751.58
  5. Step 5: Solve for x
    x = 78,809,956,751.58/388,152.25
  6. Step 6: Final answer
    x = 203,038.77

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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.