Home / 253,339.14-380,140.02-111,284.31

Finding the Fourth Proportional to 253,339.14, 380,140.02 and 111,284.31

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Solution

The fourth proportional to 253,339.14, 380,140.02 and 111,284.31 is: 166,984.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,339.14 : 380,140.02 = 111,284.31 : x
  2. Step 2: Convert to fraction form
    253,339.14/380,140.02 = 111,284.31/x
  3. Step 3: Cross multiply
    253,339.14x = 380,140.02 × 111,284.31
  4. Step 4: Simplify right side
    253,339.14x = 42,303,619,829.09
  5. Step 5: Solve for x
    x = 42,303,619,829.09/253,339.14
  6. Step 6: Final answer
    x = 166,984.15

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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.