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Finding the Fourth Proportional to 302,030.40, 453,175.20 and 154,286.40

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Solution

The fourth proportional to 302,030.40, 453,175.20 and 154,286.40 is: 231,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,030.40 : 453,175.20 = 154,286.40 : x
  2. Step 2: Convert to fraction form
    302,030.40/453,175.20 = 154,286.40/x
  3. Step 3: Cross multiply
    302,030.40x = 453,175.20 × 154,286.40
  4. Step 4: Simplify right side
    302,030.40x = 69,918,770,177.28
  5. Step 5: Solve for x
    x = 69,918,770,177.28/302,030.40
  6. Step 6: Final answer
    x = 231,495.80

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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.