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Finding the Fourth Proportional to 268,408.63, 370,399.53 and 147,550.51

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Solution

The fourth proportional to 268,408.63, 370,399.53 and 147,550.51 is: 203,617.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,408.63 : 370,399.53 = 147,550.51 : x
  2. Step 2: Convert to fraction form
    268,408.63/370,399.53 = 147,550.51/x
  3. Step 3: Cross multiply
    268,408.63x = 370,399.53 × 147,550.51
  4. Step 4: Simplify right side
    268,408.63x = 54,652,639,555.26
  5. Step 5: Solve for x
    x = 54,652,639,555.26/268,408.63
  6. Step 6: Final answer
    x = 203,617.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.