Home / 346,789.20-520,075.80-136,491.60

Finding the Fourth Proportional to 346,789.20, 520,075.80 and 136,491.60

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Solution

The fourth proportional to 346,789.20, 520,075.80 and 136,491.60 is: 204,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,789.20 : 520,075.80 = 136,491.60 : x
  2. Step 2: Convert to fraction form
    346,789.20/520,075.80 = 136,491.60/x
  3. Step 3: Cross multiply
    346,789.20x = 520,075.80 × 136,491.60
  4. Step 4: Simplify right side
    346,789.20x = 70,985,978,063.28
  5. Step 5: Solve for x
    x = 70,985,978,063.28/346,789.20
  6. Step 6: Final answer
    x = 204,694.89

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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.