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Finding the Fourth Proportional to 303,565.65, 455,348.48 and 154,266.45

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Solution

The fourth proportional to 303,565.65, 455,348.48 and 154,266.45 is: 231,399.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,565.65 : 455,348.48 = 154,266.45 : x
  2. Step 2: Convert to fraction form
    303,565.65/455,348.48 = 154,266.45/x
  3. Step 3: Cross multiply
    303,565.65x = 455,348.48 × 154,266.45
  4. Step 4: Simplify right side
    303,565.65x = 70,244,992,751.16
  5. Step 5: Solve for x
    x = 70,244,992,751.16/303,565.65
  6. Step 6: Final answer
    x = 231,399.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.