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Finding the Fourth Proportional to 344,117.72, 474,749.98 and 253,688.72

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Solution

The fourth proportional to 344,117.72, 474,749.98 and 253,688.72 is: 349,992.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,117.72 : 474,749.98 = 253,688.72 : x
  2. Step 2: Convert to fraction form
    344,117.72/474,749.98 = 253,688.72/x
  3. Step 3: Cross multiply
    344,117.72x = 474,749.98 × 253,688.72
  4. Step 4: Simplify right side
    344,117.72x = 120,438,711,738.25
  5. Step 5: Solve for x
    x = 120,438,711,738.25/344,117.72
  6. Step 6: Final answer
    x = 349,992.76

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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.