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Finding the Fourth Proportional to 468,839.48, 646,997.88 and 253,980.42

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Solution

The fourth proportional to 468,839.48, 646,997.88 and 253,980.42 is: 350,492.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,839.48 : 646,997.88 = 253,980.42 : x
  2. Step 2: Convert to fraction form
    468,839.48/646,997.88 = 253,980.42/x
  3. Step 3: Cross multiply
    468,839.48x = 646,997.88 × 253,980.42
  4. Step 4: Simplify right side
    468,839.48x = 164,324,793,301.51
  5. Step 5: Solve for x
    x = 164,324,793,301.51/468,839.48
  6. Step 6: Final answer
    x = 350,492.65

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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.