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Finding the Fourth Proportional to 304,632.09, 420,405.42 and 168,666.03

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Solution

The fourth proportional to 304,632.09, 420,405.42 and 168,666.03 is: 232,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,632.09 : 420,405.42 = 168,666.03 : x
  2. Step 2: Convert to fraction form
    304,632.09/420,405.42 = 168,666.03/x
  3. Step 3: Cross multiply
    304,632.09x = 420,405.42 × 168,666.03
  4. Step 4: Simplify right side
    304,632.09x = 70,908,115,340.21
  5. Step 5: Solve for x
    x = 70,908,115,340.21/304,632.09
  6. Step 6: Final answer
    x = 232,766.40

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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.