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Finding the Fourth Proportional to 355,038.66, 489,957.24 and 193,898.44

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Solution

The fourth proportional to 355,038.66, 489,957.24 and 193,898.44 is: 267,581.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,038.66 : 489,957.24 = 193,898.44 : x
  2. Step 2: Convert to fraction form
    355,038.66/489,957.24 = 193,898.44/x
  3. Step 3: Cross multiply
    355,038.66x = 489,957.24 × 193,898.44
  4. Step 4: Simplify right side
    355,038.66x = 95,001,944,502.71
  5. Step 5: Solve for x
    x = 95,001,944,502.71/355,038.66
  6. Step 6: Final answer
    x = 267,581.97

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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.