Home / 318,222.72-439,132.32-174,988.80

Finding the Fourth Proportional to 318,222.72, 439,132.32 and 174,988.80

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Solution

The fourth proportional to 318,222.72, 439,132.32 and 174,988.80 is: 241,476.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,222.72 : 439,132.32 = 174,988.80 : x
  2. Step 2: Convert to fraction form
    318,222.72/439,132.32 = 174,988.80/x
  3. Step 3: Cross multiply
    318,222.72x = 439,132.32 × 174,988.80
  4. Step 4: Simplify right side
    318,222.72x = 76,843,237,718.02
  5. Step 5: Solve for x
    x = 76,843,237,718.02/318,222.72
  6. Step 6: Final answer
    x = 241,476.28

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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.