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Finding the Fourth Proportional to 251,130.88, 346,620.40 and 143,762.96

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Solution

The fourth proportional to 251,130.88, 346,620.40 and 143,762.96 is: 198,427.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,130.88 : 346,620.40 = 143,762.96 : x
  2. Step 2: Convert to fraction form
    251,130.88/346,620.40 = 143,762.96/x
  3. Step 3: Cross multiply
    251,130.88x = 346,620.40 × 143,762.96
  4. Step 4: Simplify right side
    251,130.88x = 49,831,174,700.38
  5. Step 5: Solve for x
    x = 49,831,174,700.38/251,130.88
  6. Step 6: Final answer
    x = 198,427.11

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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.