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Finding the Fourth Proportional to 468,768.78, 646,901.10 and 253,908.18

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Solution

The fourth proportional to 468,768.78, 646,901.10 and 253,908.18 is: 350,393.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,768.78 : 646,901.10 = 253,908.18 : x
  2. Step 2: Convert to fraction form
    468,768.78/646,901.10 = 253,908.18/x
  3. Step 3: Cross multiply
    468,768.78x = 646,901.10 × 253,908.18
  4. Step 4: Simplify right side
    468,768.78x = 164,253,480,941.00
  5. Step 5: Solve for x
    x = 164,253,480,941.00/468,768.78
  6. Step 6: Final answer
    x = 350,393.39

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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.