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Finding the Fourth Proportional to 403,577.60, 605,220.60 and 163,590.80

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Solution

The fourth proportional to 403,577.60, 605,220.60 and 163,590.80 is: 245,327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,577.60 : 605,220.60 = 163,590.80 : x
  2. Step 2: Convert to fraction form
    403,577.60/605,220.60 = 163,590.80/x
  3. Step 3: Cross multiply
    403,577.60x = 605,220.60 × 163,590.80
  4. Step 4: Simplify right side
    403,577.60x = 99,008,522,130.48
  5. Step 5: Solve for x
    x = 99,008,522,130.48/403,577.60
  6. Step 6: Final answer
    x = 245,327.10

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1.5x scale

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.