Home / 251,329.68-346,856.04-138,173.76

Finding the Fourth Proportional to 251,329.68, 346,856.04 and 138,173.76

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Solution

The fourth proportional to 251,329.68, 346,856.04 and 138,173.76 is: 190,691.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,329.68 : 346,856.04 = 138,173.76 : x
  2. Step 2: Convert to fraction form
    251,329.68/346,856.04 = 138,173.76/x
  3. Step 3: Cross multiply
    251,329.68x = 346,856.04 × 138,173.76
  4. Step 4: Simplify right side
    251,329.68x = 47,926,403,225.51
  5. Step 5: Solve for x
    x = 47,926,403,225.51/251,329.68
  6. Step 6: Final answer
    x = 190,691.38

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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.