Home / 238,087.47-328,570.20-130,661.36

Finding the Fourth Proportional to 238,087.47, 328,570.20 and 130,661.36

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Solution

The fourth proportional to 238,087.47, 328,570.20 and 130,661.36 is: 180,317.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,087.47 : 328,570.20 = 130,661.36 : x
  2. Step 2: Convert to fraction form
    238,087.47/328,570.20 = 130,661.36/x
  3. Step 3: Cross multiply
    238,087.47x = 328,570.20 × 130,661.36
  4. Step 4: Simplify right side
    238,087.47x = 42,931,427,544.62
  5. Step 5: Solve for x
    x = 42,931,427,544.62/238,087.47
  6. Step 6: Final answer
    x = 180,317.88

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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.