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Finding the Fourth Proportional to 461,088, 636,301.44 and 249,120

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Solution

The fourth proportional to 461,088, 636,301.44 and 249,120 is: 343,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,088 : 636,301.44 = 249,120 : x
  2. Step 2: Convert to fraction form
    461,088/636,301.44 = 249,120/x
  3. Step 3: Cross multiply
    461,088x = 636,301.44 × 249,120
  4. Step 4: Simplify right side
    461,088x = 158,515,414,732.80
  5. Step 5: Solve for x
    x = 158,515,414,732.80/461,088
  6. Step 6: Final answer
    x = 343,785.60

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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.