Home / 621,177.72-931,811.16-165,766.56

Finding the Fourth Proportional to 621,177.72, 931,811.16 and 165,766.56

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Solution

The fourth proportional to 621,177.72, 931,811.16 and 165,766.56 is: 248,661.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,177.72 : 931,811.16 = 165,766.56 : x
  2. Step 2: Convert to fraction form
    621,177.72/931,811.16 = 165,766.56/x
  3. Step 3: Cross multiply
    621,177.72x = 931,811.16 × 165,766.56
  4. Step 4: Simplify right side
    621,177.72x = 154,463,130,562.81
  5. Step 5: Solve for x
    x = 154,463,130,562.81/621,177.72
  6. Step 6: Final answer
    x = 248,661.74

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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.