Home / 219,128.40-328,822.20-144,464.40

Finding the Fourth Proportional to 219,128.40, 328,822.20 and 144,464.40

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Solution

The fourth proportional to 219,128.40, 328,822.20 and 144,464.40 is: 216,782.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,128.40 : 328,822.20 = 144,464.40 : x
  2. Step 2: Convert to fraction form
    219,128.40/328,822.20 = 144,464.40/x
  3. Step 3: Cross multiply
    219,128.40x = 328,822.20 × 144,464.40
  4. Step 4: Simplify right side
    219,128.40x = 47,503,101,829.68
  5. Step 5: Solve for x
    x = 47,503,101,829.68/219,128.40
  6. Step 6: Final answer
    x = 216,782.04

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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.