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Finding the Fourth Proportional to 103,323.40, 154,985.10 and 33,208.20

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Solution

The fourth proportional to 103,323.40, 154,985.10 and 33,208.20 is: 49,812.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,323.40 : 154,985.10 = 33,208.20 : x
  2. Step 2: Convert to fraction form
    103,323.40/154,985.10 = 33,208.20/x
  3. Step 3: Cross multiply
    103,323.40x = 154,985.10 × 33,208.20
  4. Step 4: Simplify right side
    103,323.40x = 5,146,776,197.82
  5. Step 5: Solve for x
    x = 5,146,776,197.82/103,323.40
  6. Step 6: Final answer
    x = 49,812.30

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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.