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Finding the Fourth Proportional to 343,903.80, 515,855.70 and 237,615.60

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Solution

The fourth proportional to 343,903.80, 515,855.70 and 237,615.60 is: 356,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,903.80 : 515,855.70 = 237,615.60 : x
  2. Step 2: Convert to fraction form
    343,903.80/515,855.70 = 237,615.60/x
  3. Step 3: Cross multiply
    343,903.80x = 515,855.70 × 237,615.60
  4. Step 4: Simplify right side
    343,903.80x = 122,575,361,668.92
  5. Step 5: Solve for x
    x = 122,575,361,668.92/343,903.80
  6. Step 6: Final answer
    x = 356,423.40

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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.