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Finding the Fourth Proportional to 200,258.15, 300,055.50 and 140,803.34

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Solution

The fourth proportional to 200,258.15, 300,055.50 and 140,803.34 is: 210,971.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,258.15 : 300,055.50 = 140,803.34 : x
  2. Step 2: Convert to fraction form
    200,258.15/300,055.50 = 140,803.34/x
  3. Step 3: Cross multiply
    200,258.15x = 300,055.50 × 140,803.34
  4. Step 4: Simplify right side
    200,258.15x = 42,248,816,585.37
  5. Step 5: Solve for x
    x = 42,248,816,585.37/200,258.15
  6. Step 6: Final answer
    x = 210,971.77

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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.