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Finding the Fourth Proportional to 342,313.63, 472,356.45 and 189,327.52

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Solution

The fourth proportional to 342,313.63, 472,356.45 and 189,327.52 is: 261,251.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,313.63 : 472,356.45 = 189,327.52 : x
  2. Step 2: Convert to fraction form
    342,313.63/472,356.45 = 189,327.52/x
  3. Step 3: Cross multiply
    342,313.63x = 472,356.45 × 189,327.52
  4. Step 4: Simplify right side
    342,313.63x = 89,430,075,234.50
  5. Step 5: Solve for x
    x = 89,430,075,234.50/342,313.63
  6. Step 6: Final answer
    x = 261,251.87

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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.