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Finding the Fourth Proportional to 346,843.10, 520,053.45 and 136,228.70

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Solution

The fourth proportional to 346,843.10, 520,053.45 and 136,228.70 is: 204,260.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,843.10 : 520,053.45 = 136,228.70 : x
  2. Step 2: Convert to fraction form
    346,843.10/520,053.45 = 136,228.70/x
  3. Step 3: Cross multiply
    346,843.10x = 520,053.45 × 136,228.70
  4. Step 4: Simplify right side
    346,843.10x = 70,846,205,424.02
  5. Step 5: Solve for x
    x = 70,846,205,424.02/346,843.10
  6. Step 6: Final answer
    x = 204,260.10

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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.