Home / 372,143.11-513,545.48-211,012.51

Finding the Fourth Proportional to 372,143.11, 513,545.48 and 211,012.51

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Solution

The fourth proportional to 372,143.11, 513,545.48 and 211,012.51 is: 291,190.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,143.11 : 513,545.48 = 211,012.51 : x
  2. Step 2: Convert to fraction form
    372,143.11/513,545.48 = 211,012.51/x
  3. Step 3: Cross multiply
    372,143.11x = 513,545.48 × 211,012.51
  4. Step 4: Simplify right side
    372,143.11x = 108,364,519,678.89
  5. Step 5: Solve for x
    x = 108,364,519,678.89/372,143.11
  6. Step 6: Final answer
    x = 291,190.45

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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.