Home / 268,587.23-402,906.08-79,047.70

Finding the Fourth Proportional to 268,587.23, 402,906.08 and 79,047.70

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Solution

The fourth proportional to 268,587.23, 402,906.08 and 79,047.70 is: 118,578.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,587.23 : 402,906.08 = 79,047.70 : x
  2. Step 2: Convert to fraction form
    268,587.23/402,906.08 = 79,047.70/x
  3. Step 3: Cross multiply
    268,587.23x = 402,906.08 × 79,047.70
  4. Step 4: Simplify right side
    268,587.23x = 31,848,798,130.37
  5. Step 5: Solve for x
    x = 31,848,798,130.37/268,587.23
  6. Step 6: Final answer
    x = 118,578.98

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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.