Home / 388,386.04-582,719.34-135,703.72

Finding the Fourth Proportional to 388,386.04, 582,719.34 and 135,703.72

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Solution

The fourth proportional to 388,386.04, 582,719.34 and 135,703.72 is: 203,604.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,386.04 : 582,719.34 = 135,703.72 : x
  2. Step 2: Convert to fraction form
    388,386.04/582,719.34 = 135,703.72/x
  3. Step 3: Cross multiply
    388,386.04x = 582,719.34 × 135,703.72
  4. Step 4: Simplify right side
    388,386.04x = 79,077,182,153.94
  5. Step 5: Solve for x
    x = 79,077,182,153.94/388,386.04
  6. Step 6: Final answer
    x = 203,604.59

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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.