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Finding the Fourth Proportional to 317,728.56, 438,473.03 and 174,491.67

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Solution

The fourth proportional to 317,728.56, 438,473.03 and 174,491.67 is: 240,802.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,728.56 : 438,473.03 = 174,491.67 : x
  2. Step 2: Convert to fraction form
    317,728.56/438,473.03 = 174,491.67/x
  3. Step 3: Cross multiply
    317,728.56x = 438,473.03 × 174,491.67
  4. Step 4: Simplify right side
    317,728.56x = 76,509,891,254.66
  5. Step 5: Solve for x
    x = 76,509,891,254.66/317,728.56
  6. Step 6: Final answer
    x = 240,802.69

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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.