Home / 346,815.10-520,011.45-136,200.70

Finding the Fourth Proportional to 346,815.10, 520,011.45 and 136,200.70

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Solution

The fourth proportional to 346,815.10, 520,011.45 and 136,200.70 is: 204,218.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,815.10 : 520,011.45 = 136,200.70 : x
  2. Step 2: Convert to fraction form
    346,815.10/520,011.45 = 136,200.70/x
  3. Step 3: Cross multiply
    346,815.10x = 520,011.45 × 136,200.70
  4. Step 4: Simplify right side
    346,815.10x = 70,825,923,498.02
  5. Step 5: Solve for x
    x = 70,825,923,498.02/346,815.10
  6. Step 6: Final answer
    x = 204,218.11

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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.