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Finding the Fourth Proportional to 304,436.27, 420,111.72 and 168,475.95

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Solution

The fourth proportional to 304,436.27, 420,111.72 and 168,475.95 is: 232,491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,436.27 : 420,111.72 = 168,475.95 : x
  2. Step 2: Convert to fraction form
    304,436.27/420,111.72 = 168,475.95/x
  3. Step 3: Cross multiply
    304,436.27x = 420,111.72 × 168,475.95
  4. Step 4: Simplify right side
    304,436.27x = 70,778,721,133.13
  5. Step 5: Solve for x
    x = 70,778,721,133.13/304,436.27
  6. Step 6: Final answer
    x = 232,491.10

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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.