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Finding the Fourth Proportional to 303,313.46, 455,023.67 and 103,587.03

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Solution

The fourth proportional to 303,313.46, 455,023.67 and 103,587.03 is: 155,398.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,313.46 : 455,023.67 = 103,587.03 : x
  2. Step 2: Convert to fraction form
    303,313.46/455,023.67 = 103,587.03/x
  3. Step 3: Cross multiply
    303,313.46x = 455,023.67 × 103,587.03
  4. Step 4: Simplify right side
    303,313.46x = 47,134,550,037.07
  5. Step 5: Solve for x
    x = 47,134,550,037.07/303,313.46
  6. Step 6: Final answer
    x = 155,398.81

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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.