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Finding the Fourth Proportional to 310,611.03, 427,585.41 and 229,886.43

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Solution

The fourth proportional to 310,611.03, 427,585.41 and 229,886.43 is: 316,460.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,611.03 : 427,585.41 = 229,886.43 : x
  2. Step 2: Convert to fraction form
    310,611.03/427,585.41 = 229,886.43/x
  3. Step 3: Cross multiply
    310,611.03x = 427,585.41 × 229,886.43
  4. Step 4: Simplify right side
    310,611.03x = 98,296,083,424.99
  5. Step 5: Solve for x
    x = 98,296,083,424.99/310,611.03
  6. Step 6: Final answer
    x = 316,460.38

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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.