Home / 543,621.22-815,368.50-144,293.02

Finding the Fourth Proportional to 543,621.22, 815,368.50 and 144,293.02

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Solution

The fourth proportional to 543,621.22, 815,368.50 and 144,293.02 is: 216,422.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,621.22 : 815,368.50 = 144,293.02 : x
  2. Step 2: Convert to fraction form
    543,621.22/815,368.50 = 144,293.02/x
  3. Step 3: Cross multiply
    543,621.22x = 815,368.50 × 144,293.02
  4. Step 4: Simplify right side
    543,621.22x = 117,651,983,938.50
  5. Step 5: Solve for x
    x = 117,651,983,938.50/543,621.22
  6. Step 6: Final answer
    x = 216,422.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.