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Finding the Fourth Proportional to 308,556.56, 425,802.32 and 174,420.56

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Solution

The fourth proportional to 308,556.56, 425,802.32 and 174,420.56 is: 240,697.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,556.56 : 425,802.32 = 174,420.56 : x
  2. Step 2: Convert to fraction form
    308,556.56/425,802.32 = 174,420.56/x
  3. Step 3: Cross multiply
    308,556.56x = 425,802.32 × 174,420.56
  4. Step 4: Simplify right side
    308,556.56x = 74,268,679,103.70
  5. Step 5: Solve for x
    x = 74,268,679,103.70/308,556.56
  6. Step 6: Final answer
    x = 240,697.13

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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.