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Finding the Fourth Proportional to 203,807.40, 306,002.70 and 154,235.40

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Solution

The fourth proportional to 203,807.40, 306,002.70 and 154,235.40 is: 231,573.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,807.40 : 306,002.70 = 154,235.40 : x
  2. Step 2: Convert to fraction form
    203,807.40/306,002.70 = 154,235.40/x
  3. Step 3: Cross multiply
    203,807.40x = 306,002.70 × 154,235.40
  4. Step 4: Simplify right side
    203,807.40x = 47,196,448,835.58
  5. Step 5: Solve for x
    x = 47,196,448,835.58/203,807.40
  6. Step 6: Final answer
    x = 231,573.77

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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.