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Finding the Fourth Proportional to 458,256.44, 687,445.06 and 170,028.87

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Solution

The fourth proportional to 458,256.44, 687,445.06 and 170,028.87 is: 255,065.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,256.44 : 687,445.06 = 170,028.87 : x
  2. Step 2: Convert to fraction form
    458,256.44/687,445.06 = 170,028.87/x
  3. Step 3: Cross multiply
    458,256.44x = 687,445.06 × 170,028.87
  4. Step 4: Simplify right side
    458,256.44x = 116,885,507,921.57
  5. Step 5: Solve for x
    x = 116,885,507,921.57/458,256.44
  6. Step 6: Final answer
    x = 255,065.72

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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.