Home / 209,454.24-288,779.04-135,736.32

Finding the Fourth Proportional to 209,454.24, 288,779.04 and 135,736.32

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Solution

The fourth proportional to 209,454.24, 288,779.04 and 135,736.32 is: 187,142.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,454.24 : 288,779.04 = 135,736.32 : x
  2. Step 2: Convert to fraction form
    209,454.24/288,779.04 = 135,736.32/x
  3. Step 3: Cross multiply
    209,454.24x = 288,779.04 × 135,736.32
  4. Step 4: Simplify right side
    209,454.24x = 39,197,804,182.73
  5. Step 5: Solve for x
    x = 39,197,804,182.73/209,454.24
  6. Step 6: Final answer
    x = 187,142.57

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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.