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Finding the Fourth Proportional to 268,396, 370,386.48 and 155,226.04

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Solution

The fourth proportional to 268,396, 370,386.48 and 155,226.04 is: 214,211.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,396 : 370,386.48 = 155,226.04 : x
  2. Step 2: Convert to fraction form
    268,396/370,386.48 = 155,226.04/x
  3. Step 3: Cross multiply
    268,396x = 370,386.48 × 155,226.04
  4. Step 4: Simplify right side
    268,396x = 57,493,626,559.94
  5. Step 5: Solve for x
    x = 57,493,626,559.94/268,396
  6. Step 6: Final answer
    x = 214,211.94

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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.