Home / 306,822.25-423,453.59-172,712.17

Finding the Fourth Proportional to 306,822.25, 423,453.59 and 172,712.17

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Solution

The fourth proportional to 306,822.25, 423,453.59 and 172,712.17 is: 238,364.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,822.25 : 423,453.59 = 172,712.17 : x
  2. Step 2: Convert to fraction form
    306,822.25/423,453.59 = 172,712.17/x
  3. Step 3: Cross multiply
    306,822.25x = 423,453.59 × 172,712.17
  4. Step 4: Simplify right side
    306,822.25x = 73,135,588,423.19
  5. Step 5: Solve for x
    x = 73,135,588,423.19/306,822.25
  6. Step 6: Final answer
    x = 238,364.68

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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.