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Finding the Fourth Proportional to 375,503.07, 518,237.70 and 214,381.32

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Solution

The fourth proportional to 375,503.07, 518,237.70 and 214,381.32 is: 295,871.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,503.07 : 518,237.70 = 214,381.32 : x
  2. Step 2: Convert to fraction form
    375,503.07/518,237.70 = 214,381.32/x
  3. Step 3: Cross multiply
    375,503.07x = 518,237.70 × 214,381.32
  4. Step 4: Simplify right side
    375,503.07x = 111,100,482,199.76
  5. Step 5: Solve for x
    x = 111,100,482,199.76/375,503.07
  6. Step 6: Final answer
    x = 295,871.04

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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.