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Finding the Fourth Proportional to 340,860.09, 511,290.10 and 91,542.09

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Solution

The fourth proportional to 340,860.09, 511,290.10 and 91,542.09 is: 137,313.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,860.09 : 511,290.10 = 91,542.09 : x
  2. Step 2: Convert to fraction form
    340,860.09/511,290.10 = 91,542.09/x
  3. Step 3: Cross multiply
    340,860.09x = 511,290.10 × 91,542.09
  4. Step 4: Simplify right side
    340,860.09x = 46,804,564,350.31
  5. Step 5: Solve for x
    x = 46,804,564,350.31/340,860.09
  6. Step 6: Final answer
    x = 137,313.13

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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.