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Finding the Fourth Proportional to 515,448.54, 772,862.06 and 231,087.69

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Solution

The fourth proportional to 515,448.54, 772,862.06 and 231,087.69 is: 346,492.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,448.54 : 772,862.06 = 231,087.69 : x
  2. Step 2: Convert to fraction form
    515,448.54/772,862.06 = 231,087.69/x
  3. Step 3: Cross multiply
    515,448.54x = 772,862.06 × 231,087.69
  4. Step 4: Simplify right side
    515,448.54x = 178,598,908,711.76
  5. Step 5: Solve for x
    x = 178,598,908,711.76/515,448.54
  6. Step 6: Final answer
    x = 346,492.22

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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.