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Finding the Fourth Proportional to 370,496.04, 511,002.43 and 318,900.95

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Solution

The fourth proportional to 370,496.04, 511,002.43 and 318,900.95 is: 439,840.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,496.04 : 511,002.43 = 318,900.95 : x
  2. Step 2: Convert to fraction form
    370,496.04/511,002.43 = 318,900.95/x
  3. Step 3: Cross multiply
    370,496.04x = 511,002.43 × 318,900.95
  4. Step 4: Simplify right side
    370,496.04x = 162,959,157,824.30
  5. Step 5: Solve for x
    x = 162,959,157,824.30/370,496.04
  6. Step 6: Final answer
    x = 439,840.48

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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.