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Finding the Fourth Proportional to 303,338.40, 454,788.90 and 170,259.45

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Solution

The fourth proportional to 303,338.40, 454,788.90 and 170,259.45 is: 255,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,338.40 : 454,788.90 = 170,259.45 : x
  2. Step 2: Convert to fraction form
    303,338.40/454,788.90 = 170,259.45/x
  3. Step 3: Cross multiply
    303,338.40x = 454,788.90 × 170,259.45
  4. Step 4: Simplify right side
    303,338.40x = 77,432,107,980.11
  5. Step 5: Solve for x
    x = 77,432,107,980.11/303,338.40
  6. Step 6: Final answer
    x = 255,266.42

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1.5x scale

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.