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Finding the Fourth Proportional to 347,206.48, 520,851.32 and 122,520.50

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Solution

The fourth proportional to 347,206.48, 520,851.32 and 122,520.50 is: 183,795.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,206.48 : 520,851.32 = 122,520.50 : x
  2. Step 2: Convert to fraction form
    347,206.48/520,851.32 = 122,520.50/x
  3. Step 3: Cross multiply
    347,206.48x = 520,851.32 × 122,520.50
  4. Step 4: Simplify right side
    347,206.48x = 63,814,964,152.06
  5. Step 5: Solve for x
    x = 63,814,964,152.06/347,206.48
  6. Step 6: Final answer
    x = 183,795.43

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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.