Home / 258,271.09-356,443.01-156,352.75

Finding the Fourth Proportional to 258,271.09, 356,443.01 and 156,352.75

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Solution

The fourth proportional to 258,271.09, 356,443.01 and 156,352.75 is: 215,784.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,271.09 : 356,443.01 = 156,352.75 : x
  2. Step 2: Convert to fraction form
    258,271.09/356,443.01 = 156,352.75/x
  3. Step 3: Cross multiply
    258,271.09x = 356,443.01 × 156,352.75
  4. Step 4: Simplify right side
    258,271.09x = 55,730,844,831.78
  5. Step 5: Solve for x
    x = 55,730,844,831.78/258,271.09
  6. Step 6: Final answer
    x = 215,784.29

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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.