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Finding the Fourth Proportional to 900.14, 1,349.55 and 283.51

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Solution

The fourth proportional to 900.14, 1,349.55 and 283.51 is: 425.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    900.14 : 1,349.55 = 283.51 : x
  2. Step 2: Convert to fraction form
    900.14/1,349.55 = 283.51/x
  3. Step 3: Cross multiply
    900.14x = 1,349.55 × 283.51
  4. Step 4: Simplify right side
    900.14x = 382,610.92
  5. Step 5: Solve for x
    x = 382,610.92/900.14
  6. Step 6: Final answer
    x = 425.06

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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.