Home / 379,415.04-523,644.66-218,267.16

Finding the Fourth Proportional to 379,415.04, 523,644.66 and 218,267.16

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Solution

The fourth proportional to 379,415.04, 523,644.66 and 218,267.16 is: 301,238.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,415.04 : 523,644.66 = 218,267.16 : x
  2. Step 2: Convert to fraction form
    379,415.04/523,644.66 = 218,267.16/x
  3. Step 3: Cross multiply
    379,415.04x = 523,644.66 × 218,267.16
  4. Step 4: Simplify right side
    379,415.04x = 114,294,432,787.37
  5. Step 5: Solve for x
    x = 114,294,432,787.37/379,415.04
  6. Step 6: Final answer
    x = 301,238.54

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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.