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Finding the Fourth Proportional to 379,487.09, 569,230.06 and 99,004.34

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Solution

The fourth proportional to 379,487.09, 569,230.06 and 99,004.34 is: 148,506.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,487.09 : 569,230.06 = 99,004.34 : x
  2. Step 2: Convert to fraction form
    379,487.09/569,230.06 = 99,004.34/x
  3. Step 3: Cross multiply
    379,487.09x = 569,230.06 × 99,004.34
  4. Step 4: Simplify right side
    379,487.09x = 56,356,246,398.46
  5. Step 5: Solve for x
    x = 56,356,246,398.46/379,487.09
  6. Step 6: Final answer
    x = 148,506.36

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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.