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Finding the Fourth Proportional to 249,412, 344,188.62 and 136,234.72

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Solution

The fourth proportional to 249,412, 344,188.62 and 136,234.72 is: 188,003.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,412 : 344,188.62 = 136,234.72 : x
  2. Step 2: Convert to fraction form
    249,412/344,188.62 = 136,234.72/x
  3. Step 3: Cross multiply
    249,412x = 344,188.62 × 136,234.72
  4. Step 4: Simplify right side
    249,412x = 46,890,440,272.89
  5. Step 5: Solve for x
    x = 46,890,440,272.89/249,412
  6. Step 6: Final answer
    x = 188,003.95

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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.