Home / 445,111.23-667,693.98-145,623.45

Finding the Fourth Proportional to 445,111.23, 667,693.98 and 145,623.45

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Solution

The fourth proportional to 445,111.23, 667,693.98 and 145,623.45 is: 218,444.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,111.23 : 667,693.98 = 145,623.45 : x
  2. Step 2: Convert to fraction form
    445,111.23/667,693.98 = 145,623.45/x
  3. Step 3: Cross multiply
    445,111.23x = 667,693.98 × 145,623.45
  4. Step 4: Simplify right side
    445,111.23x = 97,231,900,911.83
  5. Step 5: Solve for x
    x = 97,231,900,911.83/445,111.23
  6. Step 6: Final answer
    x = 218,444.05

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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.