Home / 383,979.93-575,904.24-103,431.57

Finding the Fourth Proportional to 383,979.93, 575,904.24 and 103,431.57

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Solution

The fourth proportional to 383,979.93, 575,904.24 and 103,431.57 is: 155,129.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,979.93 : 575,904.24 = 103,431.57 : x
  2. Step 2: Convert to fraction form
    383,979.93/575,904.24 = 103,431.57/x
  3. Step 3: Cross multiply
    383,979.93x = 575,904.24 × 103,431.57
  4. Step 4: Simplify right side
    383,979.93x = 59,566,679,712.86
  5. Step 5: Solve for x
    x = 59,566,679,712.86/383,979.93
  6. Step 6: Final answer
    x = 155,129.67

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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.