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Finding the Fourth Proportional to 877.36, 1,316.28 and 300.28

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Solution

The fourth proportional to 877.36, 1,316.28 and 300.28 is: 450.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    877.36 : 1,316.28 = 300.28 : x
  2. Step 2: Convert to fraction form
    877.36/1,316.28 = 300.28/x
  3. Step 3: Cross multiply
    877.36x = 1,316.28 × 300.28
  4. Step 4: Simplify right side
    877.36x = 395,252.56
  5. Step 5: Solve for x
    x = 395,252.56/877.36
  6. Step 6: Final answer
    x = 450.50

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Half scale
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Double scale
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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.