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Finding the Fourth Proportional to 377,502.44, 521,285.63 and 256,931.76

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Solution

The fourth proportional to 377,502.44, 521,285.63 and 256,931.76 is: 354,791.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,502.44 : 521,285.63 = 256,931.76 : x
  2. Step 2: Convert to fraction form
    377,502.44/521,285.63 = 256,931.76/x
  3. Step 3: Cross multiply
    377,502.44x = 521,285.63 × 256,931.76
  4. Step 4: Simplify right side
    377,502.44x = 133,934,833,093.95
  5. Step 5: Solve for x
    x = 133,934,833,093.95/377,502.44
  6. Step 6: Final answer
    x = 354,791.97

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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.