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Finding the Fourth Proportional to 346,309.89, 519,254.58 and 135,695.49

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Solution

The fourth proportional to 346,309.89, 519,254.58 and 135,695.49 is: 203,460.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,309.89 : 519,254.58 = 135,695.49 : x
  2. Step 2: Convert to fraction form
    346,309.89/519,254.58 = 135,695.49/x
  3. Step 3: Cross multiply
    346,309.89x = 519,254.58 × 135,695.49
  4. Step 4: Simplify right side
    346,309.89x = 70,460,504,667.84
  5. Step 5: Solve for x
    x = 70,460,504,667.84/346,309.89
  6. Step 6: Final answer
    x = 203,460.85

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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.