Home / 380,137.92-524,462.16-218,988.81

Finding the Fourth Proportional to 380,137.92, 524,462.16 and 218,988.81

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Solution

The fourth proportional to 380,137.92, 524,462.16 and 218,988.81 is: 302,130.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,137.92 : 524,462.16 = 218,988.81 : x
  2. Step 2: Convert to fraction form
    380,137.92/524,462.16 = 218,988.81/x
  3. Step 3: Cross multiply
    380,137.92x = 524,462.16 × 218,988.81
  4. Step 4: Simplify right side
    380,137.92x = 114,851,344,308.43
  5. Step 5: Solve for x
    x = 114,851,344,308.43/380,137.92
  6. Step 6: Final answer
    x = 302,130.72

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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.