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Finding the Fourth Proportional to 310,619.52, 427,597.12 and 229,894.92

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Solution

The fourth proportional to 310,619.52, 427,597.12 and 229,894.92 is: 316,472.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,619.52 : 427,597.12 = 229,894.92 : x
  2. Step 2: Convert to fraction form
    310,619.52/427,597.12 = 229,894.92/x
  3. Step 3: Cross multiply
    310,619.52x = 427,597.12 × 229,894.92
  4. Step 4: Simplify right side
    310,619.52x = 98,302,405,694.63
  5. Step 5: Solve for x
    x = 98,302,405,694.63/310,619.52
  6. Step 6: Final answer
    x = 316,472.08

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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.