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Finding the Fourth Proportional to 303,399.14, 455,152.71 and 103,741.70

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Solution

The fourth proportional to 303,399.14, 455,152.71 and 103,741.70 is: 155,631.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,399.14 : 455,152.71 = 103,741.70 : x
  2. Step 2: Convert to fraction form
    303,399.14/455,152.71 = 103,741.70/x
  3. Step 3: Cross multiply
    303,399.14x = 455,152.71 × 103,741.70
  4. Step 4: Simplify right side
    303,399.14x = 47,218,315,895.01
  5. Step 5: Solve for x
    x = 47,218,315,895.01/303,399.14
  6. Step 6: Final answer
    x = 155,631.01

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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.