Home / 389,175.34-537,075.30-225,819.54

Finding the Fourth Proportional to 389,175.34, 537,075.30 and 225,819.54

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Solution

The fourth proportional to 389,175.34, 537,075.30 and 225,819.54 is: 311,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,175.34 : 537,075.30 = 225,819.54 : x
  2. Step 2: Convert to fraction form
    389,175.34/537,075.30 = 225,819.54/x
  3. Step 3: Cross multiply
    389,175.34x = 537,075.30 × 225,819.54
  4. Step 4: Simplify right side
    389,175.34x = 121,282,094,660.94
  5. Step 5: Solve for x
    x = 121,282,094,660.94/389,175.34
  6. Step 6: Final answer
    x = 311,638.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.