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Finding the Fourth Proportional to 309,084.21, 426,507.52 and 174,948.21

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Solution

The fourth proportional to 309,084.21, 426,507.52 and 174,948.21 is: 241,412.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,084.21 : 426,507.52 = 174,948.21 : x
  2. Step 2: Convert to fraction form
    309,084.21/426,507.52 = 174,948.21/x
  3. Step 3: Cross multiply
    309,084.21x = 426,507.52 × 174,948.21
  4. Step 4: Simplify right side
    309,084.21x = 74,616,727,175.54
  5. Step 5: Solve for x
    x = 74,616,727,175.54/309,084.21
  6. Step 6: Final answer
    x = 241,412.29

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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.