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Finding the Fourth Proportional to 371,418.34, 557,348.88 and 134,779.48

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Solution

The fourth proportional to 371,418.34, 557,348.88 and 134,779.48 is: 202,249.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,418.34 : 557,348.88 = 134,779.48 : x
  2. Step 2: Convert to fraction form
    371,418.34/557,348.88 = 134,779.48/x
  3. Step 3: Cross multiply
    371,418.34x = 557,348.88 × 134,779.48
  4. Step 4: Simplify right side
    371,418.34x = 75,119,192,224.98
  5. Step 5: Solve for x
    x = 75,119,192,224.98/371,418.34
  6. Step 6: Final answer
    x = 202,249.55

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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.