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Finding the Fourth Proportional to 379,877.68, 569,846.48 and 127,159.64

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Solution

The fourth proportional to 379,877.68, 569,846.48 and 127,159.64 is: 190,749.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,877.68 : 569,846.48 = 127,159.64 : x
  2. Step 2: Convert to fraction form
    379,877.68/569,846.48 = 127,159.64/x
  3. Step 3: Cross multiply
    379,877.68x = 569,846.48 × 127,159.64
  4. Step 4: Simplify right side
    379,877.68x = 72,461,473,252.07
  5. Step 5: Solve for x
    x = 72,461,473,252.07/379,877.68
  6. Step 6: Final answer
    x = 190,749.49

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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.