Home / 219,037.80-328,556.70-144,388.20

Finding the Fourth Proportional to 219,037.80, 328,556.70 and 144,388.20

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Solution

The fourth proportional to 219,037.80, 328,556.70 and 144,388.20 is: 216,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,037.80 : 328,556.70 = 144,388.20 : x
  2. Step 2: Convert to fraction form
    219,037.80/328,556.70 = 144,388.20/x
  3. Step 3: Cross multiply
    219,037.80x = 328,556.70 × 144,388.20
  4. Step 4: Simplify right side
    219,037.80x = 47,439,710,510.94
  5. Step 5: Solve for x
    x = 47,439,710,510.94/219,037.80
  6. Step 6: Final answer
    x = 216,582.30

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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.