Home / 251,949.36-347,690.10-138,772.11

Finding the Fourth Proportional to 251,949.36, 347,690.10 and 138,772.11

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Solution

The fourth proportional to 251,949.36, 347,690.10 and 138,772.11 is: 191,505.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,949.36 : 347,690.10 = 138,772.11 : x
  2. Step 2: Convert to fraction form
    251,949.36/347,690.10 = 138,772.11/x
  3. Step 3: Cross multiply
    251,949.36x = 347,690.10 × 138,772.11
  4. Step 4: Simplify right side
    251,949.36x = 48,249,688,803.11
  5. Step 5: Solve for x
    x = 48,249,688,803.11/251,949.36
  6. Step 6: Final answer
    x = 191,505.50

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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.