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Finding the Fourth Proportional to 309,480.79, 464,352.45 and 169,075.39

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Solution

The fourth proportional to 309,480.79, 464,352.45 and 169,075.39 is: 253,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,480.79 : 464,352.45 = 169,075.39 : x
  2. Step 2: Convert to fraction form
    309,480.79/464,352.45 = 169,075.39/x
  3. Step 3: Cross multiply
    309,480.79x = 464,352.45 × 169,075.39
  4. Step 4: Simplify right side
    309,480.79x = 78,510,571,581.21
  5. Step 5: Solve for x
    x = 78,510,571,581.21/309,480.79
  6. Step 6: Final answer
    x = 253,684.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.