Home / 384,860.36-531,061.26-212,755.16

Finding the Fourth Proportional to 384,860.36, 531,061.26 and 212,755.16

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Solution

The fourth proportional to 384,860.36, 531,061.26 and 212,755.16 is: 293,576.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,860.36 : 531,061.26 = 212,755.16 : x
  2. Step 2: Convert to fraction form
    384,860.36/531,061.26 = 212,755.16/x
  3. Step 3: Cross multiply
    384,860.36x = 531,061.26 × 212,755.16
  4. Step 4: Simplify right side
    384,860.36x = 112,986,023,341.10
  5. Step 5: Solve for x
    x = 112,986,023,341.10/384,860.36
  6. Step 6: Final answer
    x = 293,576.67

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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.