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Finding the Fourth Proportional to 304,521.48, 420,230.52 and 168,561

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Solution

The fourth proportional to 304,521.48, 420,230.52 and 168,561 is: 232,609.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,521.48 : 420,230.52 = 168,561 : x
  2. Step 2: Convert to fraction form
    304,521.48/420,230.52 = 168,561/x
  3. Step 3: Cross multiply
    304,521.48x = 420,230.52 × 168,561
  4. Step 4: Simplify right side
    304,521.48x = 70,834,476,681.72
  5. Step 5: Solve for x
    x = 70,834,476,681.72/304,521.48
  6. Step 6: Final answer
    x = 232,609.13

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1.5x scale

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.