Home / 238,379.46-328,826.20-142,830.80

Finding the Fourth Proportional to 238,379.46, 328,826.20 and 142,830.80

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Solution

The fourth proportional to 238,379.46, 328,826.20 and 142,830.80 is: 197,024.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,379.46 : 328,826.20 = 142,830.80 : x
  2. Step 2: Convert to fraction form
    238,379.46/328,826.20 = 142,830.80/x
  3. Step 3: Cross multiply
    238,379.46x = 328,826.20 × 142,830.80
  4. Step 4: Simplify right side
    238,379.46x = 46,966,509,206.96
  5. Step 5: Solve for x
    x = 46,966,509,206.96/238,379.46
  6. Step 6: Final answer
    x = 197,024.14

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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.