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Finding the Fourth Proportional to 340,335.56, 510,464.64 and 91,037

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Solution

The fourth proportional to 340,335.56, 510,464.64 and 91,037 is: 136,545.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,335.56 : 510,464.64 = 91,037 : x
  2. Step 2: Convert to fraction form
    340,335.56/510,464.64 = 91,037/x
  3. Step 3: Cross multiply
    340,335.56x = 510,464.64 × 91,037
  4. Step 4: Simplify right side
    340,335.56x = 46,471,169,431.68
  5. Step 5: Solve for x
    x = 46,471,169,431.68/340,335.56
  6. Step 6: Final answer
    x = 136,545.15

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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.