Home / 372,124.37-513,516.13-210,990.31

Finding the Fourth Proportional to 372,124.37, 513,516.13 and 210,990.31

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Solution

The fourth proportional to 372,124.37, 513,516.13 and 210,990.31 is: 291,157.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,124.37 : 513,516.13 = 210,990.31 : x
  2. Step 2: Convert to fraction form
    372,124.37/513,516.13 = 210,990.31/x
  3. Step 3: Cross multiply
    372,124.37x = 513,516.13 × 210,990.31
  4. Step 4: Simplify right side
    372,124.37x = 108,346,927,458.70
  5. Step 5: Solve for x
    x = 108,346,927,458.70/372,124.37
  6. Step 6: Final answer
    x = 291,157.84

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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.