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Finding the Fourth Proportional to 304,660.39, 420,435.78 and 175,527.61

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Solution

The fourth proportional to 304,660.39, 420,435.78 and 175,527.61 is: 242,230.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,660.39 : 420,435.78 = 175,527.61 : x
  2. Step 2: Convert to fraction form
    304,660.39/420,435.78 = 175,527.61/x
  3. Step 3: Cross multiply
    304,660.39x = 420,435.78 × 175,527.61
  4. Step 4: Simplify right side
    304,660.39x = 73,798,087,621.89
  5. Step 5: Solve for x
    x = 73,798,087,621.89/304,660.39
  6. Step 6: Final answer
    x = 242,230.66

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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.