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Finding the Fourth Proportional to 614.48, 848.24 and 381.60

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Solution

The fourth proportional to 614.48, 848.24 and 381.60 is: 526.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.48 : 848.24 = 381.60 : x
  2. Step 2: Convert to fraction form
    614.48/848.24 = 381.60/x
  3. Step 3: Cross multiply
    614.48x = 848.24 × 381.60
  4. Step 4: Simplify right side
    614.48x = 323,688.38
  5. Step 5: Solve for x
    x = 323,688.38/614.48
  6. Step 6: Final answer
    x = 526.77

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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.