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Finding the Fourth Proportional to 217,330.67, 300,061.93 and 135,783.06

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Solution

The fourth proportional to 217,330.67, 300,061.93 and 135,783.06 is: 187,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,330.67 : 300,061.93 = 135,783.06 : x
  2. Step 2: Convert to fraction form
    217,330.67/300,061.93 = 135,783.06/x
  3. Step 3: Cross multiply
    217,330.67x = 300,061.93 × 135,783.06
  4. Step 4: Simplify right side
    217,330.67x = 40,743,326,089.40
  5. Step 5: Solve for x
    x = 40,743,326,089.40/217,330.67
  6. Step 6: Final answer
    x = 187,471.59

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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.