Home / 249,997.78-375,035.63-81,479.00

Finding the Fourth Proportional to 249,997.78, 375,035.63 and 81,479.00

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Solution

The fourth proportional to 249,997.78, 375,035.63 and 81,479.00 is: 122,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,997.78 : 375,035.63 = 81,479.00 : x
  2. Step 2: Convert to fraction form
    249,997.78/375,035.63 = 81,479.00/x
  3. Step 3: Cross multiply
    249,997.78x = 375,035.63 × 81,479.00
  4. Step 4: Simplify right side
    249,997.78x = 30,557,528,626.96
  5. Step 5: Solve for x
    x = 30,557,528,626.96/249,997.78
  6. Step 6: Final answer
    x = 122,231.20

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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.