Home / 257,208.40-385,873.38-107,365.42

Finding the Fourth Proportional to 257,208.40, 385,873.38 and 107,365.42

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Solution

The fourth proportional to 257,208.40, 385,873.38 and 107,365.42 is: 161,073.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,208.40 : 385,873.38 = 107,365.42 : x
  2. Step 2: Convert to fraction form
    257,208.40/385,873.38 = 107,365.42/x
  3. Step 3: Cross multiply
    257,208.40x = 385,873.38 × 107,365.42
  4. Step 4: Simplify right side
    257,208.40x = 41,429,457,510.52
  5. Step 5: Solve for x
    x = 41,429,457,510.52/257,208.40
  6. Step 6: Final answer
    x = 161,073.50

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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.