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Finding the Fourth Proportional to 400,977.90, 601,090.05 and 134,551.56

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Solution

The fourth proportional to 400,977.90, 601,090.05 and 134,551.56 is: 201,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,977.90 : 601,090.05 = 134,551.56 : x
  2. Step 2: Convert to fraction form
    400,977.90/601,090.05 = 134,551.56/x
  3. Step 3: Cross multiply
    400,977.90x = 601,090.05 × 134,551.56
  4. Step 4: Simplify right side
    400,977.90x = 80,877,603,927.98
  5. Step 5: Solve for x
    x = 80,877,603,927.98/400,977.90
  6. Step 6: Final answer
    x = 201,700.90

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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.