Home / 219,115.64-328,767.36-69,368.12

Finding the Fourth Proportional to 219,115.64, 328,767.36 and 69,368.12

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Solution

The fourth proportional to 219,115.64, 328,767.36 and 69,368.12 is: 104,081.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,115.64 : 328,767.36 = 69,368.12 : x
  2. Step 2: Convert to fraction form
    219,115.64/328,767.36 = 69,368.12/x
  3. Step 3: Cross multiply
    219,115.64x = 328,767.36 × 69,368.12
  4. Step 4: Simplify right side
    219,115.64x = 22,805,973,680.56
  5. Step 5: Solve for x
    x = 22,805,973,680.56/219,115.64
  6. Step 6: Final answer
    x = 104,081.91

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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.