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Finding the Fourth Proportional to 210,330, 315,495.36 and 62,586

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Solution

The fourth proportional to 210,330, 315,495.36 and 62,586 is: 93,879.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,330 : 315,495.36 = 62,586 : x
  2. Step 2: Convert to fraction form
    210,330/315,495.36 = 62,586/x
  3. Step 3: Cross multiply
    210,330x = 315,495.36 × 62,586
  4. Step 4: Simplify right side
    210,330x = 19,745,592,600.96
  5. Step 5: Solve for x
    x = 19,745,592,600.96/210,330
  6. Step 6: Final answer
    x = 93,879.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.