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Finding the Fourth Proportional to 218,115.61, 301,000.01 and 122,623.09

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Solution

The fourth proportional to 218,115.61, 301,000.01 and 122,623.09 is: 169,220.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,115.61 : 301,000.01 = 122,623.09 : x
  2. Step 2: Convert to fraction form
    218,115.61/301,000.01 = 122,623.09/x
  3. Step 3: Cross multiply
    218,115.61x = 301,000.01 × 122,623.09
  4. Step 4: Simplify right side
    218,115.61x = 36,909,551,316.23
  5. Step 5: Solve for x
    x = 36,909,551,316.23/218,115.61
  6. Step 6: Final answer
    x = 169,220.13

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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.