Home / 280,972.40-421,622.62-112,573.40

Finding the Fourth Proportional to 280,972.40, 421,622.62 and 112,573.40

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Solution

The fourth proportional to 280,972.40, 421,622.62 and 112,573.40 is: 168,925.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,972.40 : 421,622.62 = 112,573.40 : x
  2. Step 2: Convert to fraction form
    280,972.40/421,622.62 = 112,573.40/x
  3. Step 3: Cross multiply
    280,972.40x = 421,622.62 × 112,573.40
  4. Step 4: Simplify right side
    280,972.40x = 47,463,489,460.76
  5. Step 5: Solve for x
    x = 47,463,489,460.76/280,972.40
  6. Step 6: Final answer
    x = 168,925.81

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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.