Home / 231,112.40-346,783.80-131,349.20

Finding the Fourth Proportional to 231,112.40, 346,783.80 and 131,349.20

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Solution

The fourth proportional to 231,112.40, 346,783.80 and 131,349.20 is: 197,089.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,112.40 : 346,783.80 = 131,349.20 : x
  2. Step 2: Convert to fraction form
    231,112.40/346,783.80 = 131,349.20/x
  3. Step 3: Cross multiply
    231,112.40x = 346,783.80 × 131,349.20
  4. Step 4: Simplify right side
    231,112.40x = 45,549,774,702.96
  5. Step 5: Solve for x
    x = 45,549,774,702.96/231,112.40
  6. Step 6: Final answer
    x = 197,089.27

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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.