Home / 251,953.36-347,695.64-138,776.12

Finding the Fourth Proportional to 251,953.36, 347,695.64 and 138,776.12

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Solution

The fourth proportional to 251,953.36, 347,695.64 and 138,776.12 is: 191,511.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,953.36 : 347,695.64 = 138,776.12 : x
  2. Step 2: Convert to fraction form
    251,953.36/347,695.64 = 138,776.12/x
  3. Step 3: Cross multiply
    251,953.36x = 347,695.64 × 138,776.12
  4. Step 4: Simplify right side
    251,953.36x = 48,251,851,860.12
  5. Step 5: Solve for x
    x = 48,251,851,860.12/251,953.36
  6. Step 6: Final answer
    x = 191,511.05

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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.