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Finding the Fourth Proportional to 303,603.64, 455,327.34 and 90,316.12

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Solution

The fourth proportional to 303,603.64, 455,327.34 and 90,316.12 is: 135,450.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,603.64 : 455,327.34 = 90,316.12 : x
  2. Step 2: Convert to fraction form
    303,603.64/455,327.34 = 90,316.12/x
  3. Step 3: Cross multiply
    303,603.64x = 455,327.34 × 90,316.12
  4. Step 4: Simplify right side
    303,603.64x = 41,123,398,678.72
  5. Step 5: Solve for x
    x = 41,123,398,678.72/303,603.64
  6. Step 6: Final answer
    x = 135,450.94

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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.