Home / 268,603.06-402,837.60-79,025.70

Finding the Fourth Proportional to 268,603.06, 402,837.60 and 79,025.70

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Solution

The fourth proportional to 268,603.06, 402,837.60 and 79,025.70 is: 118,518.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,603.06 : 402,837.60 = 79,025.70 : x
  2. Step 2: Convert to fraction form
    268,603.06/402,837.60 = 79,025.70/x
  3. Step 3: Cross multiply
    268,603.06x = 402,837.60 × 79,025.70
  4. Step 4: Simplify right side
    268,603.06x = 31,834,523,326.32
  5. Step 5: Solve for x
    x = 31,834,523,326.32/268,603.06
  6. Step 6: Final answer
    x = 118,518.84

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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.