Home / 219,325.90-328,551.45-125,722.30

Finding the Fourth Proportional to 219,325.90, 328,551.45 and 125,722.30

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Solution

The fourth proportional to 219,325.90, 328,551.45 and 125,722.30 is: 188,332.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,325.90 : 328,551.45 = 125,722.30 : x
  2. Step 2: Convert to fraction form
    219,325.90/328,551.45 = 125,722.30/x
  3. Step 3: Cross multiply
    219,325.90x = 328,551.45 × 125,722.30
  4. Step 4: Simplify right side
    219,325.90x = 41,306,243,962.34
  5. Step 5: Solve for x
    x = 41,306,243,962.34/219,325.90
  6. Step 6: Final answer
    x = 188,332.72

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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.