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Finding the Fourth Proportional to 317,727.56, 438,471.65 and 174,490.67

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Solution

The fourth proportional to 317,727.56, 438,471.65 and 174,490.67 is: 240,801.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,727.56 : 438,471.65 = 174,490.67 : x
  2. Step 2: Convert to fraction form
    317,727.56/438,471.65 = 174,490.67/x
  3. Step 3: Cross multiply
    317,727.56x = 438,471.65 × 174,490.67
  4. Step 4: Simplify right side
    317,727.56x = 76,509,213,516.91
  5. Step 5: Solve for x
    x = 76,509,213,516.91/317,727.56
  6. Step 6: Final answer
    x = 240,801.31

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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.