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Finding the Fourth Proportional to 310,818.67, 428,929.13 and 174,852.71

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Solution

The fourth proportional to 310,818.67, 428,929.13 and 174,852.71 is: 241,296.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,818.67 : 428,929.13 = 174,852.71 : x
  2. Step 2: Convert to fraction form
    310,818.67/428,929.13 = 174,852.71/x
  3. Step 3: Cross multiply
    310,818.67x = 428,929.13 × 174,852.71
  4. Step 4: Simplify right side
    310,818.67x = 74,999,419,904.18
  5. Step 5: Solve for x
    x = 74,999,419,904.18/310,818.67
  6. Step 6: Final answer
    x = 241,296.38

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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.