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Finding the Fourth Proportional to 305,725.60, 458,588.40 and 235,741.60

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Solution

The fourth proportional to 305,725.60, 458,588.40 and 235,741.60 is: 353,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,725.60 : 458,588.40 = 235,741.60 : x
  2. Step 2: Convert to fraction form
    305,725.60/458,588.40 = 235,741.60/x
  3. Step 3: Cross multiply
    305,725.60x = 458,588.40 × 235,741.60
  4. Step 4: Simplify right side
    305,725.60x = 108,108,363,157.44
  5. Step 5: Solve for x
    x = 108,108,363,157.44/305,725.60
  6. Step 6: Final answer
    x = 353,612.40

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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.