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Finding the Fourth Proportional to 214,605, 321,802.74 and 64,816.56

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Solution

The fourth proportional to 214,605, 321,802.74 and 64,816.56 is: 97,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,605 : 321,802.74 = 64,816.56 : x
  2. Step 2: Convert to fraction form
    214,605/321,802.74 = 64,816.56/x
  3. Step 3: Cross multiply
    214,605x = 321,802.74 × 64,816.56
  4. Step 4: Simplify right side
    214,605x = 20,858,146,605.37
  5. Step 5: Solve for x
    x = 20,858,146,605.37/214,605
  6. Step 6: Final answer
    x = 97,193.20

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1.5x scale

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.