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Finding the Fourth Proportional to 349,401.60, 524,102.40 and 265,420.80

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Solution

The fourth proportional to 349,401.60, 524,102.40 and 265,420.80 is: 398,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,401.60 : 524,102.40 = 265,420.80 : x
  2. Step 2: Convert to fraction form
    349,401.60/524,102.40 = 265,420.80/x
  3. Step 3: Cross multiply
    349,401.60x = 524,102.40 × 265,420.80
  4. Step 4: Simplify right side
    349,401.60x = 139,107,678,289.92
  5. Step 5: Solve for x
    x = 139,107,678,289.92/349,401.60
  6. Step 6: Final answer
    x = 398,131.20

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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.