Home / 205,381.80-307,554.30-134,879.40

Finding the Fourth Proportional to 205,381.80, 307,554.30 and 134,879.40

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Solution

The fourth proportional to 205,381.80, 307,554.30 and 134,879.40 is: 201,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,381.80 : 307,554.30 = 134,879.40 : x
  2. Step 2: Convert to fraction form
    205,381.80/307,554.30 = 134,879.40/x
  3. Step 3: Cross multiply
    205,381.80x = 307,554.30 × 134,879.40
  4. Step 4: Simplify right side
    205,381.80x = 41,482,739,451.42
  5. Step 5: Solve for x
    x = 41,482,739,451.42/205,381.80
  6. Step 6: Final answer
    x = 201,978.65

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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.