Home / 389,841.32-537,980.94-220,075.44

Finding the Fourth Proportional to 389,841.32, 537,980.94 and 220,075.44

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Solution

The fourth proportional to 389,841.32, 537,980.94 and 220,075.44 is: 303,704.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,841.32 : 537,980.94 = 220,075.44 : x
  2. Step 2: Convert to fraction form
    389,841.32/537,980.94 = 220,075.44/x
  3. Step 3: Cross multiply
    389,841.32x = 537,980.94 × 220,075.44
  4. Step 4: Simplify right side
    389,841.32x = 118,396,392,082.11
  5. Step 5: Solve for x
    x = 118,396,392,082.11/389,841.32
  6. Step 6: Final answer
    x = 303,704.06

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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.