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Finding the Fourth Proportional to 306,732.50, 423,256.83 and 170,735.12

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Solution

The fourth proportional to 306,732.50, 423,256.83 and 170,735.12 is: 235,595.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,732.50 : 423,256.83 = 170,735.12 : x
  2. Step 2: Convert to fraction form
    306,732.50/423,256.83 = 170,735.12/x
  3. Step 3: Cross multiply
    306,732.50x = 423,256.83 × 170,735.12
  4. Step 4: Simplify right side
    306,732.50x = 72,264,805,660.87
  5. Step 5: Solve for x
    x = 72,264,805,660.87/306,732.50
  6. Step 6: Final answer
    x = 235,595.53

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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.