Home / 238,260.40-328,784.40-130,829.68

Finding the Fourth Proportional to 238,260.40, 328,784.40 and 130,829.68

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Solution

The fourth proportional to 238,260.40, 328,784.40 and 130,829.68 is: 180,536.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,260.40 : 328,784.40 = 130,829.68 : x
  2. Step 2: Convert to fraction form
    238,260.40/328,784.40 = 130,829.68/x
  3. Step 3: Cross multiply
    238,260.40x = 328,784.40 × 130,829.68
  4. Step 4: Simplify right side
    238,260.40x = 43,014,757,840.99
  5. Step 5: Solve for x
    x = 43,014,757,840.99/238,260.40
  6. Step 6: Final answer
    x = 180,536.75

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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.