Home / 258,648.32-356,931.26-145,471.07

Finding the Fourth Proportional to 258,648.32, 356,931.26 and 145,471.07

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Solution

The fourth proportional to 258,648.32, 356,931.26 and 145,471.07 is: 200,748.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,648.32 : 356,931.26 = 145,471.07 : x
  2. Step 2: Convert to fraction form
    258,648.32/356,931.26 = 145,471.07/x
  3. Step 3: Cross multiply
    258,648.32x = 356,931.26 × 145,471.07
  4. Step 4: Simplify right side
    258,648.32x = 51,923,173,019.14
  5. Step 5: Solve for x
    x = 51,923,173,019.14/258,648.32
  6. Step 6: Final answer
    x = 200,748.15

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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.