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Finding the Fourth Proportional to 351,220.79, 484,684.66 and 190,075.87

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Solution

The fourth proportional to 351,220.79, 484,684.66 and 190,075.87 is: 262,304.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,220.79 : 484,684.66 = 190,075.87 : x
  2. Step 2: Convert to fraction form
    351,220.79/484,684.66 = 190,075.87/x
  3. Step 3: Cross multiply
    351,220.79x = 484,684.66 × 190,075.87
  4. Step 4: Simplify right side
    351,220.79x = 92,126,860,631.78
  5. Step 5: Solve for x
    x = 92,126,860,631.78/351,220.79
  6. Step 6: Final answer
    x = 262,304.69

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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.