Home / 281,296.12-388,111.88-160,393.32

Finding the Fourth Proportional to 281,296.12, 388,111.88 and 160,393.32

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Solution

The fourth proportional to 281,296.12, 388,111.88 and 160,393.32 is: 221,299.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,296.12 : 388,111.88 = 160,393.32 : x
  2. Step 2: Convert to fraction form
    281,296.12/388,111.88 = 160,393.32/x
  3. Step 3: Cross multiply
    281,296.12x = 388,111.88 × 160,393.32
  4. Step 4: Simplify right side
    281,296.12x = 62,250,552,964.64
  5. Step 5: Solve for x
    x = 62,250,552,964.64/281,296.12
  6. Step 6: Final answer
    x = 221,299.01

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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.