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Finding the Fourth Proportional to 305,036.17, 420,939.04 and 169,082.83

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Solution

The fourth proportional to 305,036.17, 420,939.04 and 169,082.83 is: 233,328.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,036.17 : 420,939.04 = 169,082.83 : x
  2. Step 2: Convert to fraction form
    305,036.17/420,939.04 = 169,082.83/x
  3. Step 3: Cross multiply
    305,036.17x = 420,939.04 × 169,082.83
  4. Step 4: Simplify right side
    305,036.17x = 71,173,564,140.68
  5. Step 5: Solve for x
    x = 71,173,564,140.68/305,036.17
  6. Step 6: Final answer
    x = 233,328.28

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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.