Home / 221,302.45-331,570.95-102,730.60

Finding the Fourth Proportional to 221,302.45, 331,570.95 and 102,730.60

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Solution

The fourth proportional to 221,302.45, 331,570.95 and 102,730.60 is: 153,918.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,302.45 : 331,570.95 = 102,730.60 : x
  2. Step 2: Convert to fraction form
    221,302.45/331,570.95 = 102,730.60/x
  3. Step 3: Cross multiply
    221,302.45x = 331,570.95 × 102,730.60
  4. Step 4: Simplify right side
    221,302.45x = 34,062,482,636.07
  5. Step 5: Solve for x
    x = 34,062,482,636.07/221,302.45
  6. Step 6: Final answer
    x = 153,918.24

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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.