Home / 215,307.78-297,120.33-134,779.70

Finding the Fourth Proportional to 215,307.78, 297,120.33 and 134,779.70

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Solution

The fourth proportional to 215,307.78, 297,120.33 and 134,779.70 is: 185,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,307.78 : 297,120.33 = 134,779.70 : x
  2. Step 2: Convert to fraction form
    215,307.78/297,120.33 = 134,779.70/x
  3. Step 3: Cross multiply
    215,307.78x = 297,120.33 × 134,779.70
  4. Step 4: Simplify right side
    215,307.78x = 40,045,789,684.10
  5. Step 5: Solve for x
    x = 40,045,789,684.10/215,307.78
  6. Step 6: Final answer
    x = 185,993.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.