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Finding the Fourth Proportional to 494,839.80, 742,259.70 and 214,903.80

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Solution

The fourth proportional to 494,839.80, 742,259.70 and 214,903.80 is: 322,355.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,839.80 : 742,259.70 = 214,903.80 : x
  2. Step 2: Convert to fraction form
    494,839.80/742,259.70 = 214,903.80/x
  3. Step 3: Cross multiply
    494,839.80x = 742,259.70 × 214,903.80
  4. Step 4: Simplify right side
    494,839.80x = 159,514,430,116.86
  5. Step 5: Solve for x
    x = 159,514,430,116.86/494,839.80
  6. Step 6: Final answer
    x = 322,355.70

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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.