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Finding the Fourth Proportional to 325,313.10, 487,969.65 and 103,697.10

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Solution

The fourth proportional to 325,313.10, 487,969.65 and 103,697.10 is: 155,545.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,313.10 : 487,969.65 = 103,697.10 : x
  2. Step 2: Convert to fraction form
    325,313.10/487,969.65 = 103,697.10/x
  3. Step 3: Cross multiply
    325,313.10x = 487,969.65 × 103,697.10
  4. Step 4: Simplify right side
    325,313.10x = 50,601,037,593.02
  5. Step 5: Solve for x
    x = 50,601,037,593.02/325,313.10
  6. Step 6: Final answer
    x = 155,545.65

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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.