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Finding the Fourth Proportional to 312,564.00, 431,336.59 and 169,326.84

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Solution

The fourth proportional to 312,564.00, 431,336.59 and 169,326.84 is: 233,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,564.00 : 431,336.59 = 169,326.84 : x
  2. Step 2: Convert to fraction form
    312,564.00/431,336.59 = 169,326.84/x
  3. Step 3: Cross multiply
    312,564.00x = 431,336.59 × 169,326.84
  4. Step 4: Simplify right side
    312,564.00x = 73,036,858,757.76
  5. Step 5: Solve for x
    x = 73,036,858,757.76/312,564.00
  6. Step 6: Final answer
    x = 233,670.10

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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.