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Finding the Fourth Proportional to 1,036.46, 1,554.71 and 256.46

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Solution

The fourth proportional to 1,036.46, 1,554.71 and 256.46 is: 384.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.46 : 1,554.71 = 256.46 : x
  2. Step 2: Convert to fraction form
    1,036.46/1,554.71 = 256.46/x
  3. Step 3: Cross multiply
    1,036.46x = 1,554.71 × 256.46
  4. Step 4: Simplify right side
    1,036.46x = 398,719.64
  5. Step 5: Solve for x
    x = 398,719.64/1,036.46
  6. Step 6: Final answer
    x = 384.69

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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.