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Finding the Fourth Proportional to 303,357.30, 418,632.55 and 167,391.13

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Solution

The fourth proportional to 303,357.30, 418,632.55 and 167,391.13 is: 230,999.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,357.30 : 418,632.55 = 167,391.13 : x
  2. Step 2: Convert to fraction form
    303,357.30/418,632.55 = 167,391.13/x
  3. Step 3: Cross multiply
    303,357.30x = 418,632.55 × 167,391.13
  4. Step 4: Simplify right side
    303,357.30x = 70,075,375,599.28
  5. Step 5: Solve for x
    x = 70,075,375,599.28/303,357.30
  6. Step 6: Final answer
    x = 230,999.47

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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.