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Finding the Fourth Proportional to 345,935.80, 518,903.70 and 96,617.80

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Solution

The fourth proportional to 345,935.80, 518,903.70 and 96,617.80 is: 144,926.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,935.80 : 518,903.70 = 96,617.80 : x
  2. Step 2: Convert to fraction form
    345,935.80/518,903.70 = 96,617.80/x
  3. Step 3: Cross multiply
    345,935.80x = 518,903.70 × 96,617.80
  4. Step 4: Simplify right side
    345,935.80x = 50,135,333,905.86
  5. Step 5: Solve for x
    x = 50,135,333,905.86/345,935.80
  6. Step 6: Final answer
    x = 144,926.70

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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.