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Finding the Fourth Proportional to 281,941.51, 422,990.32 and 130,184.90

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Solution

The fourth proportional to 281,941.51, 422,990.32 and 130,184.90 is: 195,313.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,941.51 : 422,990.32 = 130,184.90 : x
  2. Step 2: Convert to fraction form
    281,941.51/422,990.32 = 130,184.90/x
  3. Step 3: Cross multiply
    281,941.51x = 422,990.32 × 130,184.90
  4. Step 4: Simplify right side
    281,941.51x = 55,066,952,510.17
  5. Step 5: Solve for x
    x = 55,066,952,510.17/281,941.51
  6. Step 6: Final answer
    x = 195,313.39

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1.5x scale

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.