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Finding the Fourth Proportional to 355,258.60, 532,887.90 and 256,114.60

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Solution

The fourth proportional to 355,258.60, 532,887.90 and 256,114.60 is: 384,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,258.60 : 532,887.90 = 256,114.60 : x
  2. Step 2: Convert to fraction form
    355,258.60/532,887.90 = 256,114.60/x
  3. Step 3: Cross multiply
    355,258.60x = 532,887.90 × 256,114.60
  4. Step 4: Simplify right side
    355,258.60x = 136,480,371,353.34
  5. Step 5: Solve for x
    x = 136,480,371,353.34/355,258.60
  6. Step 6: Final answer
    x = 384,171.90

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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.