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Finding the Fourth Proportional to 357,424.22, 492,828.72 and 266,622.55

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Solution

The fourth proportional to 357,424.22, 492,828.72 and 266,622.55 is: 367,628.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,424.22 : 492,828.72 = 266,622.55 : x
  2. Step 2: Convert to fraction form
    357,424.22/492,828.72 = 266,622.55/x
  3. Step 3: Cross multiply
    357,424.22x = 492,828.72 × 266,622.55
  4. Step 4: Simplify right side
    357,424.22x = 131,399,247,575.49
  5. Step 5: Solve for x
    x = 131,399,247,575.49/357,424.22
  6. Step 6: Final answer
    x = 367,628.27

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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.