Home / 257,939.76-355,972.66-144,762.50

Finding the Fourth Proportional to 257,939.76, 355,972.66 and 144,762.50

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Solution

The fourth proportional to 257,939.76, 355,972.66 and 144,762.50 is: 199,781.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,939.76 : 355,972.66 = 144,762.50 : x
  2. Step 2: Convert to fraction form
    257,939.76/355,972.66 = 144,762.50/x
  3. Step 3: Cross multiply
    257,939.76x = 355,972.66 × 144,762.50
  4. Step 4: Simplify right side
    257,939.76x = 51,531,492,193.25
  5. Step 5: Solve for x
    x = 51,531,492,193.25/257,939.76
  6. Step 6: Final answer
    x = 199,781.11

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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.