Home / 251,595.18-347,200.83-138,417.66

Finding the Fourth Proportional to 251,595.18, 347,200.83 and 138,417.66

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Solution

The fourth proportional to 251,595.18, 347,200.83 and 138,417.66 is: 191,016.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,595.18 : 347,200.83 = 138,417.66 : x
  2. Step 2: Convert to fraction form
    251,595.18/347,200.83 = 138,417.66/x
  3. Step 3: Cross multiply
    251,595.18x = 347,200.83 × 138,417.66
  4. Step 4: Simplify right side
    251,595.18x = 48,058,726,438.66
  5. Step 5: Solve for x
    x = 48,058,726,438.66/251,595.18
  6. Step 6: Final answer
    x = 191,016.09

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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.