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Finding the Fourth Proportional to 608,202.65, 912,208.20 and 203,391.74

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Solution

The fourth proportional to 608,202.65, 912,208.20 and 203,391.74 is: 305,055.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,202.65 : 912,208.20 = 203,391.74 : x
  2. Step 2: Convert to fraction form
    608,202.65/912,208.20 = 203,391.74/x
  3. Step 3: Cross multiply
    608,202.65x = 912,208.20 × 203,391.74
  4. Step 4: Simplify right side
    608,202.65x = 185,535,613,040.27
  5. Step 5: Solve for x
    x = 185,535,613,040.27/608,202.65
  6. Step 6: Final answer
    x = 305,055.58

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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.