Home / 348,176.90-480,441.12-212,161.28

Finding the Fourth Proportional to 348,176.90, 480,441.12 and 212,161.28

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Solution

The fourth proportional to 348,176.90, 480,441.12 and 212,161.28 is: 292,756.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,176.90 : 480,441.12 = 212,161.28 : x
  2. Step 2: Convert to fraction form
    348,176.90/480,441.12 = 212,161.28/x
  3. Step 3: Cross multiply
    348,176.90x = 480,441.12 × 212,161.28
  4. Step 4: Simplify right side
    348,176.90x = 101,931,002,983.83
  5. Step 5: Solve for x
    x = 101,931,002,983.83/348,176.90
  6. Step 6: Final answer
    x = 292,756.36

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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.