Home / 388,741.98-581,796.30-239,077.20

Finding the Fourth Proportional to 388,741.98, 581,796.30 and 239,077.20

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Solution

The fourth proportional to 388,741.98, 581,796.30 and 239,077.20 is: 357,806.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,741.98 : 581,796.30 = 239,077.20 : x
  2. Step 2: Convert to fraction form
    388,741.98/581,796.30 = 239,077.20/x
  3. Step 3: Cross multiply
    388,741.98x = 581,796.30 × 239,077.20
  4. Step 4: Simplify right side
    388,741.98x = 139,094,230,374.36
  5. Step 5: Solve for x
    x = 139,094,230,374.36/388,741.98
  6. Step 6: Final answer
    x = 357,806.04

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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.