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Finding the Fourth Proportional to 400,187.04, 600,312.12 and 133,948.53

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Solution

The fourth proportional to 400,187.04, 600,312.12 and 133,948.53 is: 200,933.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,187.04 : 600,312.12 = 133,948.53 : x
  2. Step 2: Convert to fraction form
    400,187.04/600,312.12 = 133,948.53/x
  3. Step 3: Cross multiply
    400,187.04x = 600,312.12 × 133,948.53
  4. Step 4: Simplify right side
    400,187.04x = 80,410,926,015.18
  5. Step 5: Solve for x
    x = 80,410,926,015.18/400,187.04
  6. Step 6: Final answer
    x = 200,933.36

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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.