Home / 258,379.47-356,539.46-239,336.10

Finding the Fourth Proportional to 258,379.47, 356,539.46 and 239,336.10

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Solution

The fourth proportional to 258,379.47, 356,539.46 and 239,336.10 is: 330,261.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,379.47 : 356,539.46 = 239,336.10 : x
  2. Step 2: Convert to fraction form
    258,379.47/356,539.46 = 239,336.10/x
  3. Step 3: Cross multiply
    258,379.47x = 356,539.46 × 239,336.10
  4. Step 4: Simplify right side
    258,379.47x = 85,332,762,655.83
  5. Step 5: Solve for x
    x = 85,332,762,655.83/258,379.47
  6. Step 6: Final answer
    x = 330,261.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.