Home / 219,307.07-328,972.35-69,558.72

Finding the Fourth Proportional to 219,307.07, 328,972.35 and 69,558.72

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Solution

The fourth proportional to 219,307.07, 328,972.35 and 69,558.72 is: 104,341.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,307.07 : 328,972.35 = 69,558.72 : x
  2. Step 2: Convert to fraction form
    219,307.07/328,972.35 = 69,558.72/x
  3. Step 3: Cross multiply
    219,307.07x = 328,972.35 × 69,558.72
  4. Step 4: Simplify right side
    219,307.07x = 22,882,895,581.39
  5. Step 5: Solve for x
    x = 22,882,895,581.39/219,307.07
  6. Step 6: Final answer
    x = 104,341.81

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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.