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Finding the Fourth Proportional to 303,505.82, 455,308.20 and 113,980.94

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Solution

The fourth proportional to 303,505.82, 455,308.20 and 113,980.94 is: 170,989.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,505.82 : 455,308.20 = 113,980.94 : x
  2. Step 2: Convert to fraction form
    303,505.82/455,308.20 = 113,980.94/x
  3. Step 3: Cross multiply
    303,505.82x = 455,308.20 × 113,980.94
  4. Step 4: Simplify right side
    303,505.82x = 51,896,454,349.17
  5. Step 5: Solve for x
    x = 51,896,454,349.17/303,505.82
  6. Step 6: Final answer
    x = 170,989.98

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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.