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Finding the Fourth Proportional to 305,672.10, 458,508.15 and 235,688.10

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Solution

The fourth proportional to 305,672.10, 458,508.15 and 235,688.10 is: 353,532.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,672.10 : 458,508.15 = 235,688.10 : x
  2. Step 2: Convert to fraction form
    305,672.10/458,508.15 = 235,688.10/x
  3. Step 3: Cross multiply
    305,672.10x = 458,508.15 × 235,688.10
  4. Step 4: Simplify right side
    305,672.10x = 108,064,914,708.02
  5. Step 5: Solve for x
    x = 108,064,914,708.02/305,672.10
  6. Step 6: Final answer
    x = 353,532.15

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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.