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Finding the Fourth Proportional to 210,401, 315,656.22 and 62,657

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Solution

The fourth proportional to 210,401, 315,656.22 and 62,657 is: 94,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,401 : 315,656.22 = 62,657 : x
  2. Step 2: Convert to fraction form
    210,401/315,656.22 = 62,657/x
  3. Step 3: Cross multiply
    210,401x = 315,656.22 × 62,657
  4. Step 4: Simplify right side
    210,401x = 19,778,071,776.54
  5. Step 5: Solve for x
    x = 19,778,071,776.54/210,401
  6. Step 6: Final answer
    x = 94,001.80

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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.