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Finding the Fourth Proportional to 257,556.60, 385,871.54 and 242,363.34

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Solution

The fourth proportional to 257,556.60, 385,871.54 and 242,363.34 is: 363,108.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,556.60 : 385,871.54 = 242,363.34 : x
  2. Step 2: Convert to fraction form
    257,556.60/385,871.54 = 242,363.34/x
  3. Step 3: Cross multiply
    257,556.60x = 385,871.54 × 242,363.34
  4. Step 4: Simplify right side
    257,556.60x = 93,521,114,033.53
  5. Step 5: Solve for x
    x = 93,521,114,033.53/257,556.60
  6. Step 6: Final answer
    x = 363,108.98

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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.