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Finding the Fourth Proportional to 304,130.79, 419,683.54 and 168,156.56

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Solution

The fourth proportional to 304,130.79, 419,683.54 and 168,156.56 is: 232,046.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,130.79 : 419,683.54 = 168,156.56 : x
  2. Step 2: Convert to fraction form
    304,130.79/419,683.54 = 168,156.56/x
  3. Step 3: Cross multiply
    304,130.79x = 419,683.54 × 168,156.56
  4. Step 4: Simplify right side
    304,130.79x = 70,572,540,375.02
  5. Step 5: Solve for x
    x = 70,572,540,375.02/304,130.79
  6. Step 6: Final answer
    x = 232,046.68

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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.