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Finding the Fourth Proportional to 515,089.26, 772,622.10 and 136,036.71

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Solution

The fourth proportional to 515,089.26, 772,622.10 and 136,036.71 is: 204,051.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,089.26 : 772,622.10 = 136,036.71 : x
  2. Step 2: Convert to fraction form
    515,089.26/772,622.10 = 136,036.71/x
  3. Step 3: Cross multiply
    515,089.26x = 772,622.10 × 136,036.71
  4. Step 4: Simplify right side
    515,089.26x = 105,104,968,557.29
  5. Step 5: Solve for x
    x = 105,104,968,557.29/515,089.26
  6. Step 6: Final answer
    x = 204,051.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.