Home / 438,334.15-657,337.20-153,914.80

Finding the Fourth Proportional to 438,334.15, 657,337.20 and 153,914.80

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Solution

The fourth proportional to 438,334.15, 657,337.20 and 153,914.80 is: 230,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,334.15 : 657,337.20 = 153,914.80 : x
  2. Step 2: Convert to fraction form
    438,334.15/657,337.20 = 153,914.80/x
  3. Step 3: Cross multiply
    438,334.15x = 657,337.20 × 153,914.80
  4. Step 4: Simplify right side
    438,334.15x = 101,173,923,670.56
  5. Step 5: Solve for x
    x = 101,173,923,670.56/438,334.15
  6. Step 6: Final answer
    x = 230,814.60

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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.