Home / 288,265.10-432,835.05-221,780.30

Finding the Fourth Proportional to 288,265.10, 432,835.05 and 221,780.30

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Solution

The fourth proportional to 288,265.10, 432,835.05 and 221,780.30 is: 333,006.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,265.10 : 432,835.05 = 221,780.30 : x
  2. Step 2: Convert to fraction form
    288,265.10/432,835.05 = 221,780.30/x
  3. Step 3: Cross multiply
    288,265.10x = 432,835.05 × 221,780.30
  4. Step 4: Simplify right side
    288,265.10x = 95,994,287,239.52
  5. Step 5: Solve for x
    x = 95,994,287,239.52/288,265.10
  6. Step 6: Final answer
    x = 333,006.97

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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.