Home / 290,838.60-436,263.36-91,154.55

Finding the Fourth Proportional to 290,838.60, 436,263.36 and 91,154.55

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Solution

The fourth proportional to 290,838.60, 436,263.36 and 91,154.55 is: 136,733.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,838.60 : 436,263.36 = 91,154.55 : x
  2. Step 2: Convert to fraction form
    290,838.60/436,263.36 = 91,154.55/x
  3. Step 3: Cross multiply
    290,838.60x = 436,263.36 × 91,154.55
  4. Step 4: Simplify right side
    290,838.60x = 39,767,390,262.29
  5. Step 5: Solve for x
    x = 39,767,390,262.29/290,838.60
  6. Step 6: Final answer
    x = 136,733.54

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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.