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Finding the Fourth Proportional to 343,818.60, 515,946.60 and 201,663.60

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Solution

The fourth proportional to 343,818.60, 515,946.60 and 201,663.60 is: 302,623.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,818.60 : 515,946.60 = 201,663.60 : x
  2. Step 2: Convert to fraction form
    343,818.60/515,946.60 = 201,663.60/x
  3. Step 3: Cross multiply
    343,818.60x = 515,946.60 × 201,663.60
  4. Step 4: Simplify right side
    343,818.60x = 104,047,648,763.76
  5. Step 5: Solve for x
    x = 104,047,648,763.76/343,818.60
  6. Step 6: Final answer
    x = 302,623.68

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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.