Home / 331,970.15-458,118.80-188,730.20

Finding the Fourth Proportional to 331,970.15, 458,118.80 and 188,730.20

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Solution

The fourth proportional to 331,970.15, 458,118.80 and 188,730.20 is: 260,447.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,970.15 : 458,118.80 = 188,730.20 : x
  2. Step 2: Convert to fraction form
    331,970.15/458,118.80 = 188,730.20/x
  3. Step 3: Cross multiply
    331,970.15x = 458,118.80 × 188,730.20
  4. Step 4: Simplify right side
    331,970.15x = 86,460,849,513.52
  5. Step 5: Solve for x
    x = 86,460,849,513.52/331,970.15
  6. Step 6: Final answer
    x = 260,447.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.