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Finding the Fourth Proportional to 318,755.36, 439,892.08 and 175,520.54

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Solution

The fourth proportional to 318,755.36, 439,892.08 and 175,520.54 is: 242,223.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,755.36 : 439,892.08 = 175,520.54 : x
  2. Step 2: Convert to fraction form
    318,755.36/439,892.08 = 175,520.54/x
  3. Step 3: Cross multiply
    318,755.36x = 439,892.08 × 175,520.54
  4. Step 4: Simplify right side
    318,755.36x = 77,210,092,785.06
  5. Step 5: Solve for x
    x = 77,210,092,785.06/318,755.36
  6. Step 6: Final answer
    x = 242,223.67

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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.