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Finding the Fourth Proportional to 151,349.68, 208,860.64 and 83,365.28

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Solution

The fourth proportional to 151,349.68, 208,860.64 and 83,365.28 is: 115,043.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,349.68 : 208,860.64 = 83,365.28 : x
  2. Step 2: Convert to fraction form
    151,349.68/208,860.64 = 83,365.28/x
  3. Step 3: Cross multiply
    151,349.68x = 208,860.64 × 83,365.28
  4. Step 4: Simplify right side
    151,349.68x = 17,411,725,734.58
  5. Step 5: Solve for x
    x = 17,411,725,734.58/151,349.68
  6. Step 6: Final answer
    x = 115,043.03

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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.