Home / 251,809.05-347,488.02-137,085.54

Finding the Fourth Proportional to 251,809.05, 347,488.02 and 137,085.54

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Solution

The fourth proportional to 251,809.05, 347,488.02 and 137,085.54 is: 189,173.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,809.05 : 347,488.02 = 137,085.54 : x
  2. Step 2: Convert to fraction form
    251,809.05/347,488.02 = 137,085.54/x
  3. Step 3: Cross multiply
    251,809.05x = 347,488.02 × 137,085.54
  4. Step 4: Simplify right side
    251,809.05x = 47,635,582,865.23
  5. Step 5: Solve for x
    x = 47,635,582,865.23/251,809.05
  6. Step 6: Final answer
    x = 189,173.43

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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.