Home / 306,819.49-423,048.60-210,070.26

Finding the Fourth Proportional to 306,819.49, 423,048.60 and 210,070.26

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Solution

The fourth proportional to 306,819.49, 423,048.60 and 210,070.26 is: 289,648.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,819.49 : 423,048.60 = 210,070.26 : x
  2. Step 2: Convert to fraction form
    306,819.49/423,048.60 = 210,070.26/x
  3. Step 3: Cross multiply
    306,819.49x = 423,048.60 × 210,070.26
  4. Step 4: Simplify right side
    306,819.49x = 88,869,929,394.64
  5. Step 5: Solve for x
    x = 88,869,929,394.64/306,819.49
  6. Step 6: Final answer
    x = 289,648.91

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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.