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Finding the Fourth Proportional to 304,632.56, 420,392.88 and 170,496.56

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Solution

The fourth proportional to 304,632.56, 420,392.88 and 170,496.56 is: 235,285.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,632.56 : 420,392.88 = 170,496.56 : x
  2. Step 2: Convert to fraction form
    304,632.56/420,392.88 = 170,496.56/x
  3. Step 3: Cross multiply
    304,632.56x = 420,392.88 × 170,496.56
  4. Step 4: Simplify right side
    304,632.56x = 71,675,539,888.49
  5. Step 5: Solve for x
    x = 71,675,539,888.49/304,632.56
  6. Step 6: Final answer
    x = 235,285.22

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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.