Home / 221,317.02-305,416.68-125,823.72

Finding the Fourth Proportional to 221,317.02, 305,416.68 and 125,823.72

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Solution

The fourth proportional to 221,317.02, 305,416.68 and 125,823.72 is: 173,636.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,317.02 : 305,416.68 = 125,823.72 : x
  2. Step 2: Convert to fraction form
    221,317.02/305,416.68 = 125,823.72/x
  3. Step 3: Cross multiply
    221,317.02x = 305,416.68 × 125,823.72
  4. Step 4: Simplify right side
    221,317.02x = 38,428,662,827.65
  5. Step 5: Solve for x
    x = 38,428,662,827.65/221,317.02
  6. Step 6: Final answer
    x = 173,636.27

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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.