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Finding the Fourth Proportional to 302,563.40, 453,845.10 and 136,675.40

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Solution

The fourth proportional to 302,563.40, 453,845.10 and 136,675.40 is: 205,013.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,563.40 : 453,845.10 = 136,675.40 : x
  2. Step 2: Convert to fraction form
    302,563.40/453,845.10 = 136,675.40/x
  3. Step 3: Cross multiply
    302,563.40x = 453,845.10 × 136,675.40
  4. Step 4: Simplify right side
    302,563.40x = 62,029,460,580.54
  5. Step 5: Solve for x
    x = 62,029,460,580.54/302,563.40
  6. Step 6: Final answer
    x = 205,013.10

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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.