Home / 238,379.87-328,826.69-142,831.20

Finding the Fourth Proportional to 238,379.87, 328,826.69 and 142,831.20

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Solution

The fourth proportional to 238,379.87, 328,826.69 and 142,831.20 is: 197,024.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,379.87 : 328,826.69 = 142,831.20 : x
  2. Step 2: Convert to fraction form
    238,379.87/328,826.69 = 142,831.20/x
  3. Step 3: Cross multiply
    238,379.87x = 328,826.69 × 142,831.20
  4. Step 4: Simplify right side
    238,379.87x = 46,966,710,010.57
  5. Step 5: Solve for x
    x = 46,966,710,010.57/238,379.87
  6. Step 6: Final answer
    x = 197,024.65

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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.