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Finding the Fourth Proportional to 304,446.96, 420,128.19 and 168,486.57

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Solution

The fourth proportional to 304,446.96, 420,128.19 and 168,486.57 is: 232,506.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,446.96 : 420,128.19 = 168,486.57 : x
  2. Step 2: Convert to fraction form
    304,446.96/420,128.19 = 168,486.57/x
  3. Step 3: Cross multiply
    304,446.96x = 420,128.19 × 168,486.57
  4. Step 4: Simplify right side
    304,446.96x = 70,785,957,693.41
  5. Step 5: Solve for x
    x = 70,785,957,693.41/304,446.96
  6. Step 6: Final answer
    x = 232,506.70

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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.