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Finding the Fourth Proportional to 304,435.26, 420,121.35 and 168,479.10

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Solution

The fourth proportional to 304,435.26, 420,121.35 and 168,479.10 is: 232,501.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,435.26 : 420,121.35 = 168,479.10 : x
  2. Step 2: Convert to fraction form
    304,435.26/420,121.35 = 168,479.10/x
  3. Step 3: Cross multiply
    304,435.26x = 420,121.35 × 168,479.10
  4. Step 4: Simplify right side
    304,435.26x = 70,781,666,938.79
  5. Step 5: Solve for x
    x = 70,781,666,938.79/304,435.26
  6. Step 6: Final answer
    x = 232,501.54

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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.