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Finding the Fourth Proportional to 289,727.80, 433,554.90 and 264,844.60

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Solution

The fourth proportional to 289,727.80, 433,554.90 and 264,844.60 is: 396,319.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,727.80 : 433,554.90 = 264,844.60 : x
  2. Step 2: Convert to fraction form
    289,727.80/433,554.90 = 264,844.60/x
  3. Step 3: Cross multiply
    289,727.80x = 433,554.90 × 264,844.60
  4. Step 4: Simplify right side
    289,727.80x = 114,824,674,068.54
  5. Step 5: Solve for x
    x = 114,824,674,068.54/289,727.80
  6. Step 6: Final answer
    x = 396,319.15

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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.