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Finding the Fourth Proportional to 339,366.60, 508,904.10 and 170,821.80

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Solution

The fourth proportional to 339,366.60, 508,904.10 and 170,821.80 is: 256,159.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,366.60 : 508,904.10 = 170,821.80 : x
  2. Step 2: Convert to fraction form
    339,366.60/508,904.10 = 170,821.80/x
  3. Step 3: Cross multiply
    339,366.60x = 508,904.10 × 170,821.80
  4. Step 4: Simplify right side
    339,366.60x = 86,931,914,389.38
  5. Step 5: Solve for x
    x = 86,931,914,389.38/339,366.60
  6. Step 6: Final answer
    x = 256,159.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.