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Finding the Fourth Proportional to 304,862.32, 420,688.92 and 168,883.57

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Solution

The fourth proportional to 304,862.32, 420,688.92 and 168,883.57 is: 233,047.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,862.32 : 420,688.92 = 168,883.57 : x
  2. Step 2: Convert to fraction form
    304,862.32/420,688.92 = 168,883.57/x
  3. Step 3: Cross multiply
    304,862.32x = 420,688.92 × 168,883.57
  4. Step 4: Simplify right side
    304,862.32x = 71,047,446,669.04
  5. Step 5: Solve for x
    x = 71,047,446,669.04/304,862.32
  6. Step 6: Final answer
    x = 233,047.65

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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.