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Finding the Fourth Proportional to 345,635.40, 518,453.10 and 96,317.40

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Solution

The fourth proportional to 345,635.40, 518,453.10 and 96,317.40 is: 144,476.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,635.40 : 518,453.10 = 96,317.40 : x
  2. Step 2: Convert to fraction form
    345,635.40/518,453.10 = 96,317.40/x
  3. Step 3: Cross multiply
    345,635.40x = 518,453.10 × 96,317.40
  4. Step 4: Simplify right side
    345,635.40x = 49,936,054,613.94
  5. Step 5: Solve for x
    x = 49,936,054,613.94/345,635.40
  6. Step 6: Final answer
    x = 144,476.10

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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.