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Finding the Fourth Proportional to 557,141.08, 768,860.22 and 302,494.36

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Solution

The fourth proportional to 557,141.08, 768,860.22 and 302,494.36 is: 417,445.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,141.08 : 768,860.22 = 302,494.36 : x
  2. Step 2: Convert to fraction form
    557,141.08/768,860.22 = 302,494.36/x
  3. Step 3: Cross multiply
    557,141.08x = 768,860.22 × 302,494.36
  4. Step 4: Simplify right side
    557,141.08x = 232,575,880,178.36
  5. Step 5: Solve for x
    x = 232,575,880,178.36/557,141.08
  6. Step 6: Final answer
    x = 417,445.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.