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Finding the Fourth Proportional to 268,408.42, 370,403.49 and 147,557.50

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Solution

The fourth proportional to 268,408.42, 370,403.49 and 147,557.50 is: 203,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,408.42 : 370,403.49 = 147,557.50 : x
  2. Step 2: Convert to fraction form
    268,408.42/370,403.49 = 147,557.50/x
  3. Step 3: Cross multiply
    268,408.42x = 370,403.49 × 147,557.50
  4. Step 4: Simplify right side
    268,408.42x = 54,655,812,975.68
  5. Step 5: Solve for x
    x = 54,655,812,975.68/268,408.42
  6. Step 6: Final answer
    x = 203,629.28

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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.