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Finding the Fourth Proportional to 568,029.60, 851,720.40 and 213,055.20

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Solution

The fourth proportional to 568,029.60, 851,720.40 and 213,055.20 is: 319,461.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,029.60 : 851,720.40 = 213,055.20 : x
  2. Step 2: Convert to fraction form
    568,029.60/851,720.40 = 213,055.20/x
  3. Step 3: Cross multiply
    568,029.60x = 851,720.40 × 213,055.20
  4. Step 4: Simplify right side
    568,029.60x = 181,463,460,166.08
  5. Step 5: Solve for x
    x = 181,463,460,166.08/568,029.60
  6. Step 6: Final answer
    x = 319,461.27

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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.