Home / 372,124.25-513,515.96-210,990.19

Finding the Fourth Proportional to 372,124.25, 513,515.96 and 210,990.19

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Solution

The fourth proportional to 372,124.25, 513,515.96 and 210,990.19 is: 291,157.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,124.25 : 513,515.96 = 210,990.19 : x
  2. Step 2: Convert to fraction form
    372,124.25/513,515.96 = 210,990.19/x
  3. Step 3: Cross multiply
    372,124.25x = 513,515.96 × 210,990.19
  4. Step 4: Simplify right side
    372,124.25x = 108,346,826,345.90
  5. Step 5: Solve for x
    x = 108,346,826,345.90/372,124.25
  6. Step 6: Final answer
    x = 291,157.67

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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.