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Finding the Fourth Proportional to 375,354.05, 518,038.47 and 214,172.15

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Solution

The fourth proportional to 375,354.05, 518,038.47 and 214,172.15 is: 295,586.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,354.05 : 518,038.47 = 214,172.15 : x
  2. Step 2: Convert to fraction form
    375,354.05/518,038.47 = 214,172.15/x
  3. Step 3: Cross multiply
    375,354.05x = 518,038.47 × 214,172.15
  4. Step 4: Simplify right side
    375,354.05x = 110,949,410,312.42
  5. Step 5: Solve for x
    x = 110,949,410,312.42/375,354.05
  6. Step 6: Final answer
    x = 295,586.03

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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.