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Finding the Fourth Proportional to 281,597.12, 388,456.80 and 174,132.80

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Solution

The fourth proportional to 281,597.12, 388,456.80 and 174,132.80 is: 240,212.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,597.12 : 388,456.80 = 174,132.80 : x
  2. Step 2: Convert to fraction form
    281,597.12/388,456.80 = 174,132.80/x
  3. Step 3: Cross multiply
    281,597.12x = 388,456.80 × 174,132.80
  4. Step 4: Simplify right side
    281,597.12x = 67,643,070,263.04
  5. Step 5: Solve for x
    x = 67,643,070,263.04/281,597.12
  6. Step 6: Final answer
    x = 240,212.22

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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.