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Finding the Fourth Proportional to 610,010.42, 915,138.04 and 210,665.84

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Solution

The fourth proportional to 610,010.42, 915,138.04 and 210,665.84 is: 316,041.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,010.42 : 915,138.04 = 210,665.84 : x
  2. Step 2: Convert to fraction form
    610,010.42/915,138.04 = 210,665.84/x
  3. Step 3: Cross multiply
    610,010.42x = 915,138.04 × 210,665.84
  4. Step 4: Simplify right side
    610,010.42x = 192,788,323,912.55
  5. Step 5: Solve for x
    x = 192,788,323,912.55/610,010.42
  6. Step 6: Final answer
    x = 316,041.03

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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.