Home / 318,142.09-439,036.37-174,904.57

Finding the Fourth Proportional to 318,142.09, 439,036.37 and 174,904.57

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Solution

The fourth proportional to 318,142.09, 439,036.37 and 174,904.57 is: 241,368.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,142.09 : 439,036.37 = 174,904.57 : x
  2. Step 2: Convert to fraction form
    318,142.09/439,036.37 = 174,904.57/x
  3. Step 3: Cross multiply
    318,142.09x = 439,036.37 × 174,904.57
  4. Step 4: Simplify right side
    318,142.09x = 76,789,467,509.21
  5. Step 5: Solve for x
    x = 76,789,467,509.21/318,142.09
  6. Step 6: Final answer
    x = 241,368.46

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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.