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Finding the Fourth Proportional to 378,606.02, 522,486.16 and 206,526.89

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Solution

The fourth proportional to 378,606.02, 522,486.16 and 206,526.89 is: 285,012.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,606.02 : 522,486.16 = 206,526.89 : x
  2. Step 2: Convert to fraction form
    378,606.02/522,486.16 = 206,526.89/x
  3. Step 3: Cross multiply
    378,606.02x = 522,486.16 × 206,526.89
  4. Step 4: Simplify right side
    378,606.02x = 107,907,442,482.74
  5. Step 5: Solve for x
    x = 107,907,442,482.74/378,606.02
  6. Step 6: Final answer
    x = 285,012.49

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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.