Home / 349,037.12-523,526.34-138,618.56

Finding the Fourth Proportional to 349,037.12, 523,526.34 and 138,618.56

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Solution

The fourth proportional to 349,037.12, 523,526.34 and 138,618.56 is: 207,916.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,037.12 : 523,526.34 = 138,618.56 : x
  2. Step 2: Convert to fraction form
    349,037.12/523,526.34 = 138,618.56/x
  3. Step 3: Cross multiply
    349,037.12x = 523,526.34 × 138,618.56
  4. Step 4: Simplify right side
    349,037.12x = 72,570,467,372.87
  5. Step 5: Solve for x
    x = 72,570,467,372.87/349,037.12
  6. Step 6: Final answer
    x = 207,916.19

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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.