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Finding the Fourth Proportional to 345,588.76, 518,305.37 and 123,972.76

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Solution

The fourth proportional to 345,588.76, 518,305.37 and 123,972.76 is: 185,931.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,588.76 : 518,305.37 = 123,972.76 : x
  2. Step 2: Convert to fraction form
    345,588.76/518,305.37 = 123,972.76/x
  3. Step 3: Cross multiply
    345,588.76x = 518,305.37 × 123,972.76
  4. Step 4: Simplify right side
    345,588.76x = 64,255,744,650.19
  5. Step 5: Solve for x
    x = 64,255,744,650.19/345,588.76
  6. Step 6: Final answer
    x = 185,931.24

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1.5x scale

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.