Home / 251,587.68-347,190.48-138,410.16

Finding the Fourth Proportional to 251,587.68, 347,190.48 and 138,410.16

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Solution

The fourth proportional to 251,587.68, 347,190.48 and 138,410.16 is: 191,005.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,587.68 : 347,190.48 = 138,410.16 : x
  2. Step 2: Convert to fraction form
    251,587.68/347,190.48 = 138,410.16/x
  3. Step 3: Cross multiply
    251,587.68x = 347,190.48 × 138,410.16
  4. Step 4: Simplify right side
    251,587.68x = 48,054,689,887.28
  5. Step 5: Solve for x
    x = 48,054,689,887.28/251,587.68
  6. Step 6: Final answer
    x = 191,005.74

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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.