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Finding the Fourth Proportional to 317,309.04, 437,883.93 and 172,114.47

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Solution

The fourth proportional to 317,309.04, 437,883.93 and 172,114.47 is: 237,516.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,309.04 : 437,883.93 = 172,114.47 : x
  2. Step 2: Convert to fraction form
    317,309.04/437,883.93 = 172,114.47/x
  3. Step 3: Cross multiply
    317,309.04x = 437,883.93 × 172,114.47
  4. Step 4: Simplify right side
    317,309.04x = 75,366,158,568.69
  5. Step 5: Solve for x
    x = 75,366,158,568.69/317,309.04
  6. Step 6: Final answer
    x = 237,516.58

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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.