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Finding the Fourth Proportional to 354,220.08, 488,820.60 and 193,075.20

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Solution

The fourth proportional to 354,220.08, 488,820.60 and 193,075.20 is: 266,442.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,220.08 : 488,820.60 = 193,075.20 : x
  2. Step 2: Convert to fraction form
    354,220.08/488,820.60 = 193,075.20/x
  3. Step 3: Cross multiply
    354,220.08x = 488,820.60 × 193,075.20
  4. Step 4: Simplify right side
    354,220.08x = 94,379,135,109.12
  5. Step 5: Solve for x
    x = 94,379,135,109.12/354,220.08
  6. Step 6: Final answer
    x = 266,442.08

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1.5x scale

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.