Home / 355,623.80-533,738.10-145,412.60

Finding the Fourth Proportional to 355,623.80, 533,738.10 and 145,412.60

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Solution

The fourth proportional to 355,623.80, 533,738.10 and 145,412.60 is: 218,242.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,623.80 : 533,738.10 = 145,412.60 : x
  2. Step 2: Convert to fraction form
    355,623.80/533,738.10 = 145,412.60/x
  3. Step 3: Cross multiply
    355,623.80x = 533,738.10 × 145,412.60
  4. Step 4: Simplify right side
    355,623.80x = 77,612,244,840.06
  5. Step 5: Solve for x
    x = 77,612,244,840.06/355,623.80
  6. Step 6: Final answer
    x = 218,242.55

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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.