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Finding the Fourth Proportional to 314,122.60, 470,147.10 and 243,620.20

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Solution

The fourth proportional to 314,122.60, 470,147.10 and 243,620.20 is: 364,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,122.60 : 470,147.10 = 243,620.20 : x
  2. Step 2: Convert to fraction form
    314,122.60/470,147.10 = 243,620.20/x
  3. Step 3: Cross multiply
    314,122.60x = 470,147.10 × 243,620.20
  4. Step 4: Simplify right side
    314,122.60x = 114,537,330,531.42
  5. Step 5: Solve for x
    x = 114,537,330,531.42/314,122.60
  6. Step 6: Final answer
    x = 364,626.20

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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.