Home / 238,211.45-328,734.54-130,779.17

Finding the Fourth Proportional to 238,211.45, 328,734.54 and 130,779.17

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Solution

The fourth proportional to 238,211.45, 328,734.54 and 130,779.17 is: 180,476.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,211.45 : 328,734.54 = 130,779.17 : x
  2. Step 2: Convert to fraction form
    238,211.45/328,734.54 = 130,779.17/x
  3. Step 3: Cross multiply
    238,211.45x = 328,734.54 × 130,779.17
  4. Step 4: Simplify right side
    238,211.45x = 42,991,629,880.61
  5. Step 5: Solve for x
    x = 42,991,629,880.61/238,211.45
  6. Step 6: Final answer
    x = 180,476.76

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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.