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Finding the Fourth Proportional to 146,283.30, 201,869.80 and 79,215.30

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Solution

The fourth proportional to 146,283.30, 201,869.80 and 79,215.30 is: 109,316.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,283.30 : 201,869.80 = 79,215.30 : x
  2. Step 2: Convert to fraction form
    146,283.30/201,869.80 = 79,215.30/x
  3. Step 3: Cross multiply
    146,283.30x = 201,869.80 × 79,215.30
  4. Step 4: Simplify right side
    146,283.30x = 15,991,176,767.94
  5. Step 5: Solve for x
    x = 15,991,176,767.94/146,283.30
  6. Step 6: Final answer
    x = 109,316.49

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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.