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Finding the Fourth Proportional to 317,616.02, 438,313.76 and 174,372.98

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Solution

The fourth proportional to 317,616.02, 438,313.76 and 174,372.98 is: 240,636.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,616.02 : 438,313.76 = 174,372.98 : x
  2. Step 2: Convert to fraction form
    317,616.02/438,313.76 = 174,372.98/x
  3. Step 3: Cross multiply
    317,616.02x = 438,313.76 × 174,372.98
  4. Step 4: Simplify right side
    317,616.02x = 76,430,073,442.77
  5. Step 5: Solve for x
    x = 76,430,073,442.77/317,616.02
  6. Step 6: Final answer
    x = 240,636.71

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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.