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Finding the Fourth Proportional to 268,809.59, 370,897.67 and 155,566.73

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Solution

The fourth proportional to 268,809.59, 370,897.67 and 155,566.73 is: 214,647.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,809.59 : 370,897.67 = 155,566.73 : x
  2. Step 2: Convert to fraction form
    268,809.59/370,897.67 = 155,566.73/x
  3. Step 3: Cross multiply
    268,809.59x = 370,897.67 × 155,566.73
  4. Step 4: Simplify right side
    268,809.59x = 57,699,339,002.68
  5. Step 5: Solve for x
    x = 57,699,339,002.68/268,809.59
  6. Step 6: Final answer
    x = 214,647.62

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1.5x scale

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.