Home / 342,868.40-513,318.45-210,008.15

Finding the Fourth Proportional to 342,868.40, 513,318.45 and 210,008.15

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Solution

The fourth proportional to 342,868.40, 513,318.45 and 210,008.15 is: 314,409.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,868.40 : 513,318.45 = 210,008.15 : x
  2. Step 2: Convert to fraction form
    342,868.40/513,318.45 = 210,008.15/x
  3. Step 3: Cross multiply
    342,868.40x = 513,318.45 × 210,008.15
  4. Step 4: Simplify right side
    342,868.40x = 107,801,058,045.37
  5. Step 5: Solve for x
    x = 107,801,058,045.37/342,868.40
  6. Step 6: Final answer
    x = 314,409.43

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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.