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Finding the Fourth Proportional to 628,325.60, 942,445.20 and 201,855.20

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Solution

The fourth proportional to 628,325.60, 942,445.20 and 201,855.20 is: 302,768.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,325.60 : 942,445.20 = 201,855.20 : x
  2. Step 2: Convert to fraction form
    628,325.60/942,445.20 = 201,855.20/x
  3. Step 3: Cross multiply
    628,325.60x = 942,445.20 × 201,855.20
  4. Step 4: Simplify right side
    628,325.60x = 190,237,464,335.04
  5. Step 5: Solve for x
    x = 190,237,464,335.04/628,325.60
  6. Step 6: Final answer
    x = 302,768.92

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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.