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Finding the Fourth Proportional to 567,636.60, 851,130.90 and 212,662.20

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Solution

The fourth proportional to 567,636.60, 851,130.90 and 212,662.20 is: 318,871.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,636.60 : 851,130.90 = 212,662.20 : x
  2. Step 2: Convert to fraction form
    567,636.60/851,130.90 = 212,662.20/x
  3. Step 3: Cross multiply
    567,636.60x = 851,130.90 × 212,662.20
  4. Step 4: Simplify right side
    567,636.60x = 181,003,369,681.98
  5. Step 5: Solve for x
    x = 181,003,369,681.98/567,636.60
  6. Step 6: Final answer
    x = 318,871.92

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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.