Home / 304,938.66-420,809.10-168,971.40

Finding the Fourth Proportional to 304,938.66, 420,809.10 and 168,971.40

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Solution

The fourth proportional to 304,938.66, 420,809.10 and 168,971.40 is: 233,177.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,938.66 : 420,809.10 = 168,971.40 : x
  2. Step 2: Convert to fraction form
    304,938.66/420,809.10 = 168,971.40/x
  3. Step 3: Cross multiply
    304,938.66x = 420,809.10 × 168,971.40
  4. Step 4: Simplify right side
    304,938.66x = 71,104,702,759.74
  5. Step 5: Solve for x
    x = 71,104,702,759.74/304,938.66
  6. Step 6: Final answer
    x = 233,177.07

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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.