Home / 257,042.80-385,564.20-230,863.60

Finding the Fourth Proportional to 257,042.80, 385,564.20 and 230,863.60

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Solution

The fourth proportional to 257,042.80, 385,564.20 and 230,863.60 is: 346,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,042.80 : 385,564.20 = 230,863.60 : x
  2. Step 2: Convert to fraction form
    257,042.80/385,564.20 = 230,863.60/x
  3. Step 3: Cross multiply
    257,042.80x = 385,564.20 × 230,863.60
  4. Step 4: Simplify right side
    257,042.80x = 89,012,739,243.12
  5. Step 5: Solve for x
    x = 89,012,739,243.12/257,042.80
  6. Step 6: Final answer
    x = 346,295.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.