Home / 238,040.09-328,505.60-142,528.54

Finding the Fourth Proportional to 238,040.09, 328,505.60 and 142,528.54

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Solution

The fourth proportional to 238,040.09, 328,505.60 and 142,528.54 is: 196,695.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,040.09 : 328,505.60 = 142,528.54 : x
  2. Step 2: Convert to fraction form
    238,040.09/328,505.60 = 142,528.54/x
  3. Step 3: Cross multiply
    238,040.09x = 328,505.60 × 142,528.54
  4. Step 4: Simplify right side
    238,040.09x = 46,821,423,549.82
  5. Step 5: Solve for x
    x = 46,821,423,549.82/238,040.09
  6. Step 6: Final answer
    x = 196,695.54

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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.