Home / 251,338.46-346,838.28-138,160.40

Finding the Fourth Proportional to 251,338.46, 346,838.28 and 138,160.40

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Solution

The fourth proportional to 251,338.46, 346,838.28 and 138,160.40 is: 190,656.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,338.46 : 346,838.28 = 138,160.40 : x
  2. Step 2: Convert to fraction form
    251,338.46/346,838.28 = 138,160.40/x
  3. Step 3: Cross multiply
    251,338.46x = 346,838.28 × 138,160.40
  4. Step 4: Simplify right side
    251,338.46x = 47,919,315,500.11
  5. Step 5: Solve for x
    x = 47,919,315,500.11/251,338.46
  6. Step 6: Final answer
    x = 190,656.52

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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.