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Finding the Fourth Proportional to 310,908, 429,053.04 and 176,772

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Solution

The fourth proportional to 310,908, 429,053.04 and 176,772 is: 243,945.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,908 : 429,053.04 = 176,772 : x
  2. Step 2: Convert to fraction form
    310,908/429,053.04 = 176,772/x
  3. Step 3: Cross multiply
    310,908x = 429,053.04 × 176,772
  4. Step 4: Simplify right side
    310,908x = 75,844,563,986.88
  5. Step 5: Solve for x
    x = 75,844,563,986.88/310,908
  6. Step 6: Final answer
    x = 243,945.36

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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.