Home / 257,334.44-385,989.30-70,346.36

Finding the Fourth Proportional to 257,334.44, 385,989.30 and 70,346.36

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Solution

The fourth proportional to 257,334.44, 385,989.30 and 70,346.36 is: 105,516.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,334.44 : 385,989.30 = 70,346.36 : x
  2. Step 2: Convert to fraction form
    257,334.44/385,989.30 = 70,346.36/x
  3. Step 3: Cross multiply
    257,334.44x = 385,989.30 × 70,346.36
  4. Step 4: Simplify right side
    257,334.44x = 27,152,942,253.95
  5. Step 5: Solve for x
    x = 27,152,942,253.95/257,334.44
  6. Step 6: Final answer
    x = 105,516.16

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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.