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Finding the Fourth Proportional to 249,305.78, 373,860.24 and 91,448.12

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Solution

The fourth proportional to 249,305.78, 373,860.24 and 91,448.12 is: 137,136.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,305.78 : 373,860.24 = 91,448.12 : x
  2. Step 2: Convert to fraction form
    249,305.78/373,860.24 = 91,448.12/x
  3. Step 3: Cross multiply
    249,305.78x = 373,860.24 × 91,448.12
  4. Step 4: Simplify right side
    249,305.78x = 34,188,814,221.45
  5. Step 5: Solve for x
    x = 34,188,814,221.45/249,305.78
  6. Step 6: Final answer
    x = 137,136.07

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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.