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Finding the Fourth Proportional to 462,836.70, 638,773.80 and 258,898.98

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Solution

The fourth proportional to 462,836.70, 638,773.80 and 258,898.98 is: 357,313.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,836.70 : 638,773.80 = 258,898.98 : x
  2. Step 2: Convert to fraction form
    462,836.70/638,773.80 = 258,898.98/x
  3. Step 3: Cross multiply
    462,836.70x = 638,773.80 × 258,898.98
  4. Step 4: Simplify right side
    462,836.70x = 165,377,885,270.72
  5. Step 5: Solve for x
    x = 165,377,885,270.72/462,836.70
  6. Step 6: Final answer
    x = 357,313.68

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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.