Home / 499,052.87-748,579.55-139,209.18

Finding the Fourth Proportional to 499,052.87, 748,579.55 and 139,209.18

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Solution

The fourth proportional to 499,052.87, 748,579.55 and 139,209.18 is: 208,813.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,052.87 : 748,579.55 = 139,209.18 : x
  2. Step 2: Convert to fraction form
    499,052.87/748,579.55 = 139,209.18/x
  3. Step 3: Cross multiply
    499,052.87x = 748,579.55 × 139,209.18
  4. Step 4: Simplify right side
    499,052.87x = 104,209,144,624.22
  5. Step 5: Solve for x
    x = 104,209,144,624.22/499,052.87
  6. Step 6: Final answer
    x = 208,813.84

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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.