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Finding the Fourth Proportional to 340,329.26, 510,493.86 and 91,004.78

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Solution

The fourth proportional to 340,329.26, 510,493.86 and 91,004.78 is: 136,507.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,329.26 : 510,493.86 = 91,004.78 : x
  2. Step 2: Convert to fraction form
    340,329.26/510,493.86 = 91,004.78/x
  3. Step 3: Cross multiply
    340,329.26x = 510,493.86 × 91,004.78
  4. Step 4: Simplify right side
    340,329.26x = 46,457,381,420.65
  5. Step 5: Solve for x
    x = 46,457,381,420.65/340,329.26
  6. Step 6: Final answer
    x = 136,507.16

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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.