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Finding the Fourth Proportional to 281,673.80, 422,510.70 and 169,699.40

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Solution

The fourth proportional to 281,673.80, 422,510.70 and 169,699.40 is: 254,549.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,673.80 : 422,510.70 = 169,699.40 : x
  2. Step 2: Convert to fraction form
    281,673.80/422,510.70 = 169,699.40/x
  3. Step 3: Cross multiply
    281,673.80x = 422,510.70 × 169,699.40
  4. Step 4: Simplify right side
    281,673.80x = 71,699,812,283.58
  5. Step 5: Solve for x
    x = 71,699,812,283.58/281,673.80
  6. Step 6: Final answer
    x = 254,549.10

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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.