Home / 372,001.03-513,401.55-210,838.77

Finding the Fourth Proportional to 372,001.03, 513,401.55 and 210,838.77

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Solution

The fourth proportional to 372,001.03, 513,401.55 and 210,838.77 is: 290,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,001.03 : 513,401.55 = 210,838.77 : x
  2. Step 2: Convert to fraction form
    372,001.03/513,401.55 = 210,838.77/x
  3. Step 3: Cross multiply
    372,001.03x = 513,401.55 × 210,838.77
  4. Step 4: Simplify right side
    372,001.03x = 108,244,951,318.09
  5. Step 5: Solve for x
    x = 108,244,951,318.09/372,001.03
  6. Step 6: Final answer
    x = 290,980.25

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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.