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Finding the Fourth Proportional to 304,391.79, 420,024.67 and 168,407.77

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Solution

The fourth proportional to 304,391.79, 420,024.67 and 168,407.77 is: 232,382.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,391.79 : 420,024.67 = 168,407.77 : x
  2. Step 2: Convert to fraction form
    304,391.79/420,024.67 = 168,407.77/x
  3. Step 3: Cross multiply
    304,391.79x = 420,024.67 × 168,407.77
  4. Step 4: Simplify right side
    304,391.79x = 70,735,418,019.69
  5. Step 5: Solve for x
    x = 70,735,418,019.69/304,391.79
  6. Step 6: Final answer
    x = 232,382.81

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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.