Home / 251,683.02-347,322.36-138,505.76

Finding the Fourth Proportional to 251,683.02, 347,322.36 and 138,505.76

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Solution

The fourth proportional to 251,683.02, 347,322.36 and 138,505.76 is: 191,137.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,683.02 : 347,322.36 = 138,505.76 : x
  2. Step 2: Convert to fraction form
    251,683.02/347,322.36 = 138,505.76/x
  3. Step 3: Cross multiply
    251,683.02x = 347,322.36 × 138,505.76
  4. Step 4: Simplify right side
    251,683.02x = 48,106,147,436.79
  5. Step 5: Solve for x
    x = 48,106,147,436.79/251,683.02
  6. Step 6: Final answer
    x = 191,137.83

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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.