Home / 251,948.55-347,688.98-138,771.30

Finding the Fourth Proportional to 251,948.55, 347,688.98 and 138,771.30

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Solution

The fourth proportional to 251,948.55, 347,688.98 and 138,771.30 is: 191,504.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,948.55 : 347,688.98 = 138,771.30 : x
  2. Step 2: Convert to fraction form
    251,948.55/347,688.98 = 138,771.30/x
  3. Step 3: Cross multiply
    251,948.55x = 347,688.98 × 138,771.30
  4. Step 4: Simplify right side
    251,948.55x = 48,249,251,750.27
  5. Step 5: Solve for x
    x = 48,249,251,750.27/251,948.55
  6. Step 6: Final answer
    x = 191,504.38

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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.