Home / 251,663.08-347,281.86-138,464.20

Finding the Fourth Proportional to 251,663.08, 347,281.86 and 138,464.20

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Solution

The fourth proportional to 251,663.08, 347,281.86 and 138,464.20 is: 191,073.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,663.08 : 347,281.86 = 138,464.20 : x
  2. Step 2: Convert to fraction form
    251,663.08/347,281.86 = 138,464.20/x
  3. Step 3: Cross multiply
    251,663.08x = 347,281.86 × 138,464.20
  4. Step 4: Simplify right side
    251,663.08x = 48,086,104,919.41
  5. Step 5: Solve for x
    x = 48,086,104,919.41/251,663.08
  6. Step 6: Final answer
    x = 191,073.34

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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.