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Finding the Fourth Proportional to 493,873.56, 740,810.13 and 138,887.55

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Solution

The fourth proportional to 493,873.56, 740,810.13 and 138,887.55 is: 208,331.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,873.56 : 740,810.13 = 138,887.55 : x
  2. Step 2: Convert to fraction form
    493,873.56/740,810.13 = 138,887.55/x
  3. Step 3: Cross multiply
    493,873.56x = 740,810.13 × 138,887.55
  4. Step 4: Simplify right side
    493,873.56x = 102,889,303,970.88
  5. Step 5: Solve for x
    x = 102,889,303,970.88/493,873.56
  6. Step 6: Final answer
    x = 208,331.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.