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Finding the Fourth Proportional to 340,282.01, 510,384.12 and 90,983.45

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Solution

The fourth proportional to 340,282.01, 510,384.12 and 90,983.45 is: 136,464.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,282.01 : 510,384.12 = 90,983.45 : x
  2. Step 2: Convert to fraction form
    340,282.01/510,384.12 = 90,983.45/x
  3. Step 3: Cross multiply
    340,282.01x = 510,384.12 × 90,983.45
  4. Step 4: Simplify right side
    340,282.01x = 46,436,508,062.81
  5. Step 5: Solve for x
    x = 46,436,508,062.81/340,282.01
  6. Step 6: Final answer
    x = 136,464.78

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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.