Home / 306,056.22-421,323.57-252,256.02

Finding the Fourth Proportional to 306,056.22, 421,323.57 and 252,256.02

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Solution

The fourth proportional to 306,056.22, 421,323.57 and 252,256.02 is: 347,261.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,056.22 : 421,323.57 = 252,256.02 : x
  2. Step 2: Convert to fraction form
    306,056.22/421,323.57 = 252,256.02/x
  3. Step 3: Cross multiply
    306,056.22x = 421,323.57 × 252,256.02
  4. Step 4: Simplify right side
    306,056.22x = 106,281,406,900.39
  5. Step 5: Solve for x
    x = 106,281,406,900.39/306,056.22
  6. Step 6: Final answer
    x = 347,261.06

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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.