Home / 304,934.61-420,815.84-177,618.40

Finding the Fourth Proportional to 304,934.61, 420,815.84 and 177,618.40

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Solution

The fourth proportional to 304,934.61, 420,815.84 and 177,618.40 is: 245,116.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,934.61 : 420,815.84 = 177,618.40 : x
  2. Step 2: Convert to fraction form
    304,934.61/420,815.84 = 177,618.40/x
  3. Step 3: Cross multiply
    304,934.61x = 420,815.84 × 177,618.40
  4. Step 4: Simplify right side
    304,934.61x = 74,744,636,195.46
  5. Step 5: Solve for x
    x = 74,744,636,195.46/304,934.61
  6. Step 6: Final answer
    x = 245,116.93

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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.