Home / 242,905.50-364,416.60-76,693.50

Finding the Fourth Proportional to 242,905.50, 364,416.60 and 76,693.50

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Solution

The fourth proportional to 242,905.50, 364,416.60 and 76,693.50 is: 115,058.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,905.50 : 364,416.60 = 76,693.50 : x
  2. Step 2: Convert to fraction form
    242,905.50/364,416.60 = 76,693.50/x
  3. Step 3: Cross multiply
    242,905.50x = 364,416.60 × 76,693.50
  4. Step 4: Simplify right side
    242,905.50x = 27,948,384,512.10
  5. Step 5: Solve for x
    x = 27,948,384,512.10/242,905.50
  6. Step 6: Final answer
    x = 115,058.67

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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.