Home / 458,028.63-687,090.15-158,508.77

Finding the Fourth Proportional to 458,028.63, 687,090.15 and 158,508.77

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Solution

The fourth proportional to 458,028.63, 687,090.15 and 158,508.77 is: 237,779.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,028.63 : 687,090.15 = 158,508.77 : x
  2. Step 2: Convert to fraction form
    458,028.63/687,090.15 = 158,508.77/x
  3. Step 3: Cross multiply
    458,028.63x = 687,090.15 × 158,508.77
  4. Step 4: Simplify right side
    458,028.63x = 108,909,811,120.17
  5. Step 5: Solve for x
    x = 108,909,811,120.17/458,028.63
  6. Step 6: Final answer
    x = 237,779.48

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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.