Home / 318,219.09-439,142.40-174,988.77

Finding the Fourth Proportional to 318,219.09, 439,142.40 and 174,988.77

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Solution

The fourth proportional to 318,219.09, 439,142.40 and 174,988.77 is: 241,484.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,219.09 : 439,142.40 = 174,988.77 : x
  2. Step 2: Convert to fraction form
    318,219.09/439,142.40 = 174,988.77/x
  3. Step 3: Cross multiply
    318,219.09x = 439,142.40 × 174,988.77
  4. Step 4: Simplify right side
    318,219.09x = 76,844,988,430.85
  5. Step 5: Solve for x
    x = 76,844,988,430.85/318,219.09
  6. Step 6: Final answer
    x = 241,484.53

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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.