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Finding the Fourth Proportional to 370,295.60, 511,009.80 and 200,530.40

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Solution

The fourth proportional to 370,295.60, 511,009.80 and 200,530.40 is: 276,732.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,295.60 : 511,009.80 = 200,530.40 : x
  2. Step 2: Convert to fraction form
    370,295.60/511,009.80 = 200,530.40/x
  3. Step 3: Cross multiply
    370,295.60x = 511,009.80 × 200,530.40
  4. Step 4: Simplify right side
    370,295.60x = 102,472,999,597.92
  5. Step 5: Solve for x
    x = 102,472,999,597.92/370,295.60
  6. Step 6: Final answer
    x = 276,732.97

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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.