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Finding the Fourth Proportional to 347,617.80, 521,037.90 and 197,929.80

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Solution

The fourth proportional to 347,617.80, 521,037.90 and 197,929.80 is: 296,673.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,617.80 : 521,037.90 = 197,929.80 : x
  2. Step 2: Convert to fraction form
    347,617.80/521,037.90 = 197,929.80/x
  3. Step 3: Cross multiply
    347,617.80x = 521,037.90 × 197,929.80
  4. Step 4: Simplify right side
    347,617.80x = 103,128,927,339.42
  5. Step 5: Solve for x
    x = 103,128,927,339.42/347,617.80
  6. Step 6: Final answer
    x = 296,673.32

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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.