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Finding the Fourth Proportional to 304,555.39, 420,287.40 and 164,853.97

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Solution

The fourth proportional to 304,555.39, 420,287.40 and 164,853.97 is: 227,499.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,555.39 : 420,287.40 = 164,853.97 : x
  2. Step 2: Convert to fraction form
    304,555.39/420,287.40 = 164,853.97/x
  3. Step 3: Cross multiply
    304,555.39x = 420,287.40 × 164,853.97
  4. Step 4: Simplify right side
    304,555.39x = 69,286,046,430.98
  5. Step 5: Solve for x
    x = 69,286,046,430.98/304,555.39
  6. Step 6: Final answer
    x = 227,499.00

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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.