Home / 251,830.40-347,518.62-137,111.31

Finding the Fourth Proportional to 251,830.40, 347,518.62 and 137,111.31

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Solution

The fourth proportional to 251,830.40, 347,518.62 and 137,111.31 is: 189,209.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,830.40 : 347,518.62 = 137,111.31 : x
  2. Step 2: Convert to fraction form
    251,830.40/347,518.62 = 137,111.31/x
  3. Step 3: Cross multiply
    251,830.40x = 347,518.62 × 137,111.31
  4. Step 4: Simplify right side
    251,830.40x = 47,648,733,237.59
  5. Step 5: Solve for x
    x = 47,648,733,237.59/251,830.40
  6. Step 6: Final answer
    x = 189,209.62

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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.