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Finding the Fourth Proportional to 351,424.85, 484,603.83 and 300,605.82

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Solution

The fourth proportional to 351,424.85, 484,603.83 and 300,605.82 is: 414,525.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,424.85 : 484,603.83 = 300,605.82 : x
  2. Step 2: Convert to fraction form
    351,424.85/484,603.83 = 300,605.82/x
  3. Step 3: Cross multiply
    351,424.85x = 484,603.83 × 300,605.82
  4. Step 4: Simplify right side
    351,424.85x = 145,674,729,875.03
  5. Step 5: Solve for x
    x = 145,674,729,875.03/351,424.85
  6. Step 6: Final answer
    x = 414,525.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.