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Finding the Fourth Proportional to 349,660.60, 525,009.30 and 209,692.60

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Solution

The fourth proportional to 349,660.60, 525,009.30 and 209,692.60 is: 314,849.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,660.60 : 525,009.30 = 209,692.60 : x
  2. Step 2: Convert to fraction form
    349,660.60/525,009.30 = 209,692.60/x
  3. Step 3: Cross multiply
    349,660.60x = 525,009.30 × 209,692.60
  4. Step 4: Simplify right side
    349,660.60x = 110,090,565,141.18
  5. Step 5: Solve for x
    x = 110,090,565,141.18/349,660.60
  6. Step 6: Final answer
    x = 314,849.79

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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.