Home / 458,417.11-687,469.95-158,827.77

Finding the Fourth Proportional to 458,417.11, 687,469.95 and 158,827.77

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Solution

The fourth proportional to 458,417.11, 687,469.95 and 158,827.77 is: 238,187.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,417.11 : 687,469.95 = 158,827.77 : x
  2. Step 2: Convert to fraction form
    458,417.11/687,469.95 = 158,827.77/x
  3. Step 3: Cross multiply
    458,417.11x = 687,469.95 × 158,827.77
  4. Step 4: Simplify right side
    458,417.11x = 109,189,319,100.51
  5. Step 5: Solve for x
    x = 109,189,319,100.51/458,417.11
  6. Step 6: Final answer
    x = 238,187.70

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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.