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Finding the Fourth Proportional to 370,512.40, 511,303.08 and 200,736.40

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Solution

The fourth proportional to 370,512.40, 511,303.08 and 200,736.40 is: 277,014.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,512.40 : 511,303.08 = 200,736.40 : x
  2. Step 2: Convert to fraction form
    370,512.40/511,303.08 = 200,736.40/x
  3. Step 3: Cross multiply
    370,512.40x = 511,303.08 × 200,736.40
  4. Step 4: Simplify right side
    370,512.40x = 102,637,139,588.11
  5. Step 5: Solve for x
    x = 102,637,139,588.11/370,512.40
  6. Step 6: Final answer
    x = 277,014.05

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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.