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Finding the Fourth Proportional to 346,538.80, 520,099.80 and 136,327.60

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Solution

The fourth proportional to 346,538.80, 520,099.80 and 136,327.60 is: 204,606.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,538.80 : 520,099.80 = 136,327.60 : x
  2. Step 2: Convert to fraction form
    346,538.80/520,099.80 = 136,327.60/x
  3. Step 3: Cross multiply
    346,538.80x = 520,099.80 × 136,327.60
  4. Step 4: Simplify right side
    346,538.80x = 70,903,957,494.48
  5. Step 5: Solve for x
    x = 70,903,957,494.48/346,538.80
  6. Step 6: Final answer
    x = 204,606.11

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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.