Home / 249,619.40-374,429.10-143,331.20

Finding the Fourth Proportional to 249,619.40, 374,429.10 and 143,331.20

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Solution

The fourth proportional to 249,619.40, 374,429.10 and 143,331.20 is: 214,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,619.40 : 374,429.10 = 143,331.20 : x
  2. Step 2: Convert to fraction form
    249,619.40/374,429.10 = 143,331.20/x
  3. Step 3: Cross multiply
    249,619.40x = 374,429.10 × 143,331.20
  4. Step 4: Simplify right side
    249,619.40x = 53,667,372,217.92
  5. Step 5: Solve for x
    x = 53,667,372,217.92/249,619.40
  6. Step 6: Final answer
    x = 214,996.80

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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.