Home / 238,336.67-328,907.31-130,909.22

Finding the Fourth Proportional to 238,336.67, 328,907.31 and 130,909.22

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Solution

The fourth proportional to 238,336.67, 328,907.31 and 130,909.22 is: 180,656.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,336.67 : 328,907.31 = 130,909.22 : x
  2. Step 2: Convert to fraction form
    238,336.67/328,907.31 = 130,909.22/x
  3. Step 3: Cross multiply
    238,336.67x = 328,907.31 × 130,909.22
  4. Step 4: Simplify right side
    238,336.67x = 43,056,999,404.40
  5. Step 5: Solve for x
    x = 43,056,999,404.40/238,336.67
  6. Step 6: Final answer
    x = 180,656.21

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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.