Home / 306,835.98-423,215.54-204,810

Finding the Fourth Proportional to 306,835.98, 423,215.54 and 204,810

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Solution

The fourth proportional to 306,835.98, 423,215.54 and 204,810 is: 282,492.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,835.98 : 423,215.54 = 204,810 : x
  2. Step 2: Convert to fraction form
    306,835.98/423,215.54 = 204,810/x
  3. Step 3: Cross multiply
    306,835.98x = 423,215.54 × 204,810
  4. Step 4: Simplify right side
    306,835.98x = 86,678,774,747.40
  5. Step 5: Solve for x
    x = 86,678,774,747.40/306,835.98
  6. Step 6: Final answer
    x = 282,492.21

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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.