Home / 305,746.35-421,915.88-169,789.01

Finding the Fourth Proportional to 305,746.35, 421,915.88 and 169,789.01

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Solution

The fourth proportional to 305,746.35, 421,915.88 and 169,789.01 is: 234,301.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,746.35 : 421,915.88 = 169,789.01 : x
  2. Step 2: Convert to fraction form
    305,746.35/421,915.88 = 169,789.01/x
  3. Step 3: Cross multiply
    305,746.35x = 421,915.88 × 169,789.01
  4. Step 4: Simplify right side
    305,746.35x = 71,636,676,609.95
  5. Step 5: Solve for x
    x = 71,636,676,609.95/305,746.35
  6. Step 6: Final answer
    x = 234,301.00

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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.