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Finding the Fourth Proportional to 302,047.40, 453,135.90 and 91,706.60

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Solution

The fourth proportional to 302,047.40, 453,135.90 and 91,706.60 is: 137,579.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,047.40 : 453,135.90 = 91,706.60 : x
  2. Step 2: Convert to fraction form
    302,047.40/453,135.90 = 91,706.60/x
  3. Step 3: Cross multiply
    302,047.40x = 453,135.90 × 91,706.60
  4. Step 4: Simplify right side
    302,047.40x = 41,555,552,726.94
  5. Step 5: Solve for x
    x = 41,555,552,726.94/302,047.40
  6. Step 6: Final answer
    x = 137,579.57

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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.