Home / 438,942.60-605,740.26-237,738.60

Finding the Fourth Proportional to 438,942.60, 605,740.26 and 237,738.60

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Solution

The fourth proportional to 438,942.60, 605,740.26 and 237,738.60 is: 328,078.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,942.60 : 605,740.26 = 237,738.60 : x
  2. Step 2: Convert to fraction form
    438,942.60/605,740.26 = 237,738.60/x
  3. Step 3: Cross multiply
    438,942.60x = 605,740.26 × 237,738.60
  4. Step 4: Simplify right side
    438,942.60x = 144,007,841,376.04
  5. Step 5: Solve for x
    x = 144,007,841,376.04/438,942.60
  6. Step 6: Final answer
    x = 328,078.98

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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.