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Finding the Fourth Proportional to 303,248.40, 418,473.72 and 169,112.40

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Solution

The fourth proportional to 303,248.40, 418,473.72 and 169,112.40 is: 233,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,248.40 : 418,473.72 = 169,112.40 : x
  2. Step 2: Convert to fraction form
    303,248.40/418,473.72 = 169,112.40/x
  3. Step 3: Cross multiply
    303,248.40x = 418,473.72 × 169,112.40
  4. Step 4: Simplify right side
    303,248.40x = 70,769,095,126.13
  5. Step 5: Solve for x
    x = 70,769,095,126.13/303,248.40
  6. Step 6: Final answer
    x = 233,370.05

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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.