Home / 259,670.67-390,190.98-139,816.23

Finding the Fourth Proportional to 259,670.67, 390,190.98 and 139,816.23

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Solution

The fourth proportional to 259,670.67, 390,190.98 and 139,816.23 is: 210,093.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,670.67 : 390,190.98 = 139,816.23 : x
  2. Step 2: Convert to fraction form
    259,670.67/390,190.98 = 139,816.23/x
  3. Step 3: Cross multiply
    259,670.67x = 390,190.98 × 139,816.23
  4. Step 4: Simplify right side
    259,670.67x = 54,555,031,803.61
  5. Step 5: Solve for x
    x = 54,555,031,803.61/259,670.67
  6. Step 6: Final answer
    x = 210,093.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.