Home / 346,846.20-520,139.70-136,440.60

Finding the Fourth Proportional to 346,846.20, 520,139.70 and 136,440.60

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Solution

The fourth proportional to 346,846.20, 520,139.70 and 136,440.60 is: 204,609.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,846.20 : 520,139.70 = 136,440.60 : x
  2. Step 2: Convert to fraction form
    346,846.20/520,139.70 = 136,440.60/x
  3. Step 3: Cross multiply
    346,846.20x = 520,139.70 × 136,440.60
  4. Step 4: Simplify right side
    346,846.20x = 70,968,172,751.82
  5. Step 5: Solve for x
    x = 70,968,172,751.82/346,846.20
  6. Step 6: Final answer
    x = 204,609.92

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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.