Home / 305,483.07-421,532.43-169,522.75

Finding the Fourth Proportional to 305,483.07, 421,532.43 and 169,522.75

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Solution

The fourth proportional to 305,483.07, 421,532.43 and 169,522.75 is: 233,922.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,483.07 : 421,532.43 = 169,522.75 : x
  2. Step 2: Convert to fraction form
    305,483.07/421,532.43 = 169,522.75/x
  3. Step 3: Cross multiply
    305,483.07x = 421,532.43 × 169,522.75
  4. Step 4: Simplify right side
    305,483.07x = 71,459,334,267.87
  5. Step 5: Solve for x
    x = 71,459,334,267.87/305,483.07
  6. Step 6: Final answer
    x = 233,922.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.