Home / 373,320.08-515,168.88-212,172.32

Finding the Fourth Proportional to 373,320.08, 515,168.88 and 212,172.32

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Solution

The fourth proportional to 373,320.08, 515,168.88 and 212,172.32 is: 292,790.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,320.08 : 515,168.88 = 212,172.32 : x
  2. Step 2: Convert to fraction form
    373,320.08/515,168.88 = 212,172.32/x
  3. Step 3: Cross multiply
    373,320.08x = 515,168.88 × 212,172.32
  4. Step 4: Simplify right side
    373,320.08x = 109,304,576,461.40
  5. Step 5: Solve for x
    x = 109,304,576,461.40/373,320.08
  6. Step 6: Final answer
    x = 292,790.51

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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.