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Finding the Fourth Proportional to 312,265.20, 430,927.08 and 169,025.06

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Solution

The fourth proportional to 312,265.20, 430,927.08 and 169,025.06 is: 233,255.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,265.20 : 430,927.08 = 169,025.06 : x
  2. Step 2: Convert to fraction form
    312,265.20/430,927.08 = 169,025.06/x
  3. Step 3: Cross multiply
    312,265.20x = 430,927.08 × 169,025.06
  4. Step 4: Simplify right side
    312,265.20x = 72,837,475,552.62
  5. Step 5: Solve for x
    x = 72,837,475,552.62/312,265.20
  6. Step 6: Final answer
    x = 233,255.18

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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.