Home / 499,146.57-748,846.08-139,317.37

Finding the Fourth Proportional to 499,146.57, 748,846.08 and 139,317.37

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Solution

The fourth proportional to 499,146.57, 748,846.08 and 139,317.37 is: 209,011.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,146.57 : 748,846.08 = 139,317.37 : x
  2. Step 2: Convert to fraction form
    499,146.57/748,846.08 = 139,317.37/x
  3. Step 3: Cross multiply
    499,146.57x = 748,846.08 × 139,317.37
  4. Step 4: Simplify right side
    499,146.57x = 104,327,264,528.29
  5. Step 5: Solve for x
    x = 104,327,264,528.29/499,146.57
  6. Step 6: Final answer
    x = 209,011.28

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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.