Home / 421,283.30-631,905.51-105,733.22

Finding the Fourth Proportional to 421,283.30, 631,905.51 and 105,733.22

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Solution

The fourth proportional to 421,283.30, 631,905.51 and 105,733.22 is: 158,594.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,283.30 : 631,905.51 = 105,733.22 : x
  2. Step 2: Convert to fraction form
    421,283.30/631,905.51 = 105,733.22/x
  3. Step 3: Cross multiply
    421,283.30x = 631,905.51 × 105,733.22
  4. Step 4: Simplify right side
    421,283.30x = 66,813,404,308.04
  5. Step 5: Solve for x
    x = 66,813,404,308.04/421,283.30
  6. Step 6: Final answer
    x = 158,594.95

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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.