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Finding the Fourth Proportional to 251,113.98, 346,539.81 and 136,394.86

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Solution

The fourth proportional to 251,113.98, 346,539.81 and 136,394.86 is: 188,226.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,113.98 : 346,539.81 = 136,394.86 : x
  2. Step 2: Convert to fraction form
    251,113.98/346,539.81 = 136,394.86/x
  3. Step 3: Cross multiply
    251,113.98x = 346,539.81 × 136,394.86
  4. Step 4: Simplify right side
    251,113.98x = 47,266,249,164.27
  5. Step 5: Solve for x
    x = 47,266,249,164.27/251,113.98
  6. Step 6: Final answer
    x = 188,226.27

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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.