Home / 249,189.78-343,849.75-140,280.37

Finding the Fourth Proportional to 249,189.78, 343,849.75 and 140,280.37

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Solution

The fourth proportional to 249,189.78, 343,849.75 and 140,280.37 is: 193,568.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,189.78 : 343,849.75 = 140,280.37 : x
  2. Step 2: Convert to fraction form
    249,189.78/343,849.75 = 140,280.37/x
  3. Step 3: Cross multiply
    249,189.78x = 343,849.75 × 140,280.37
  4. Step 4: Simplify right side
    249,189.78x = 48,235,370,154.41
  5. Step 5: Solve for x
    x = 48,235,370,154.41/249,189.78
  6. Step 6: Final answer
    x = 193,568.81

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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.