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Finding the Fourth Proportional to 251,890.56, 347,656.56 and 144,530.76

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Solution

The fourth proportional to 251,890.56, 347,656.56 and 144,530.76 is: 199,479.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,890.56 : 347,656.56 = 144,530.76 : x
  2. Step 2: Convert to fraction form
    251,890.56/347,656.56 = 144,530.76/x
  3. Step 3: Cross multiply
    251,890.56x = 347,656.56 × 144,530.76
  4. Step 4: Simplify right side
    251,890.56x = 50,247,066,835.79
  5. Step 5: Solve for x
    x = 50,247,066,835.79/251,890.56
  6. Step 6: Final answer
    x = 199,479.75

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1.5x scale

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.