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Finding the Fourth Proportional to 255,837.78, 353,061.78 and 141,119.91

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Solution

The fourth proportional to 255,837.78, 353,061.78 and 141,119.91 is: 194,748.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,837.78 : 353,061.78 = 141,119.91 : x
  2. Step 2: Convert to fraction form
    255,837.78/353,061.78 = 141,119.91/x
  3. Step 3: Cross multiply
    255,837.78x = 353,061.78 × 141,119.91
  4. Step 4: Simplify right side
    255,837.78x = 49,824,046,088.84
  5. Step 5: Solve for x
    x = 49,824,046,088.84/255,837.78
  6. Step 6: Final answer
    x = 194,748.59

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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.