Home / 372,000.03-513,400.17-210,837.77

Finding the Fourth Proportional to 372,000.03, 513,400.17 and 210,837.77

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Solution

The fourth proportional to 372,000.03, 513,400.17 and 210,837.77 is: 290,978.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,000.03 : 513,400.17 = 210,837.77 : x
  2. Step 2: Convert to fraction form
    372,000.03/513,400.17 = 210,837.77/x
  3. Step 3: Cross multiply
    372,000.03x = 513,400.17 × 210,837.77
  4. Step 4: Simplify right side
    372,000.03x = 108,244,144,393.42
  5. Step 5: Solve for x
    x = 108,244,144,393.42/372,000.03
  6. Step 6: Final answer
    x = 290,978.86

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1.5x scale

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.