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Finding the Fourth Proportional to 340,925.28, 511,387.50 and 91,607.28

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Solution

The fourth proportional to 340,925.28, 511,387.50 and 91,607.28 is: 137,410.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,925.28 : 511,387.50 = 91,607.28 : x
  2. Step 2: Convert to fraction form
    340,925.28/511,387.50 = 91,607.28/x
  3. Step 3: Cross multiply
    340,925.28x = 511,387.50 × 91,607.28
  4. Step 4: Simplify right side
    340,925.28x = 46,846,817,901
  5. Step 5: Solve for x
    x = 46,846,817,901/340,925.28
  6. Step 6: Final answer
    x = 137,410.81

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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.