Home / 402,634.20-555,636.33-230,554.80

Finding the Fourth Proportional to 402,634.20, 555,636.33 and 230,554.80

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Solution

The fourth proportional to 402,634.20, 555,636.33 and 230,554.80 is: 318,166.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,634.20 : 555,636.33 = 230,554.80 : x
  2. Step 2: Convert to fraction form
    402,634.20/555,636.33 = 230,554.80/x
  3. Step 3: Cross multiply
    402,634.20x = 555,636.33 × 230,554.80
  4. Step 4: Simplify right side
    402,634.20x = 128,104,622,935.88
  5. Step 5: Solve for x
    x = 128,104,622,935.88/402,634.20
  6. Step 6: Final answer
    x = 318,166.27

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1.5x scale

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.