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Finding the Fourth Proportional to 252,557.70, 348,528.90 and 139,379.64

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Solution

The fourth proportional to 252,557.70, 348,528.90 and 139,379.64 is: 192,343.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,557.70 : 348,528.90 = 139,379.64 : x
  2. Step 2: Convert to fraction form
    252,557.70/348,528.90 = 139,379.64/x
  3. Step 3: Cross multiply
    252,557.70x = 348,528.90 × 139,379.64
  4. Step 4: Simplify right side
    252,557.70x = 48,577,832,611.60
  5. Step 5: Solve for x
    x = 48,577,832,611.60/252,557.70
  6. Step 6: Final answer
    x = 192,343.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.