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Finding the Fourth Proportional to 389,384.48, 537,297.36 and 238,449.44

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Solution

The fourth proportional to 389,384.48, 537,297.36 and 238,449.44 is: 329,027.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,384.48 : 537,297.36 = 238,449.44 : x
  2. Step 2: Convert to fraction form
    389,384.48/537,297.36 = 238,449.44/x
  3. Step 3: Cross multiply
    389,384.48x = 537,297.36 × 238,449.44
  4. Step 4: Simplify right side
    389,384.48x = 128,118,254,605.48
  5. Step 5: Solve for x
    x = 128,118,254,605.48/389,384.48
  6. Step 6: Final answer
    x = 329,027.64

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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.