Home / 237,403.09-327,615.19-128,507.50

Finding the Fourth Proportional to 237,403.09, 327,615.19 and 128,507.50

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Solution

The fourth proportional to 237,403.09, 327,615.19 and 128,507.50 is: 177,339.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,403.09 : 327,615.19 = 128,507.50 : x
  2. Step 2: Convert to fraction form
    237,403.09/327,615.19 = 128,507.50/x
  3. Step 3: Cross multiply
    237,403.09x = 327,615.19 × 128,507.50
  4. Step 4: Simplify right side
    237,403.09x = 42,101,009,028.93
  5. Step 5: Solve for x
    x = 42,101,009,028.93/237,403.09
  6. Step 6: Final answer
    x = 177,339.77

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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.