Home / 281,741.08-388,807.88-154,415.76

Finding the Fourth Proportional to 281,741.08, 388,807.88 and 154,415.76

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Solution

The fourth proportional to 281,741.08, 388,807.88 and 154,415.76 is: 213,096.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,741.08 : 388,807.88 = 154,415.76 : x
  2. Step 2: Convert to fraction form
    281,741.08/388,807.88 = 154,415.76/x
  3. Step 3: Cross multiply
    281,741.08x = 388,807.88 × 154,415.76
  4. Step 4: Simplify right side
    281,741.08x = 60,038,064,284.19
  5. Step 5: Solve for x
    x = 60,038,064,284.19/281,741.08
  6. Step 6: Final answer
    x = 213,096.59

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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.