Home / 256,008.48-353,292.72-142,836

Finding the Fourth Proportional to 256,008.48, 353,292.72 and 142,836

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Solution

The fourth proportional to 256,008.48, 353,292.72 and 142,836 is: 197,114.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,008.48 : 353,292.72 = 142,836 : x
  2. Step 2: Convert to fraction form
    256,008.48/353,292.72 = 142,836/x
  3. Step 3: Cross multiply
    256,008.48x = 353,292.72 × 142,836
  4. Step 4: Simplify right side
    256,008.48x = 50,462,918,953.92
  5. Step 5: Solve for x
    x = 50,462,918,953.92/256,008.48
  6. Step 6: Final answer
    x = 197,114.25

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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.