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Finding the Fourth Proportional to 349,659.60, 525,007.80 and 209,691.60

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Solution

The fourth proportional to 349,659.60, 525,007.80 and 209,691.60 is: 314,848.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,659.60 : 525,007.80 = 209,691.60 : x
  2. Step 2: Convert to fraction form
    349,659.60/525,007.80 = 209,691.60/x
  3. Step 3: Cross multiply
    349,659.60x = 525,007.80 × 209,691.60
  4. Step 4: Simplify right side
    349,659.60x = 110,089,725,594.48
  5. Step 5: Solve for x
    x = 110,089,725,594.48/349,659.60
  6. Step 6: Final answer
    x = 314,848.29

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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.