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Finding the Fourth Proportional to 340,590.56, 510,965.28 and 103,932.80

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Solution

The fourth proportional to 340,590.56, 510,965.28 and 103,932.80 is: 155,923.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,590.56 : 510,965.28 = 103,932.80 : x
  2. Step 2: Convert to fraction form
    340,590.56/510,965.28 = 103,932.80/x
  3. Step 3: Cross multiply
    340,590.56x = 510,965.28 × 103,932.80
  4. Step 4: Simplify right side
    340,590.56x = 53,106,052,253.18
  5. Step 5: Solve for x
    x = 53,106,052,253.18/340,590.56
  6. Step 6: Final answer
    x = 155,923.44

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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.