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Finding the Fourth Proportional to 370,500.17, 511,008.11 and 318,905.08

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Solution

The fourth proportional to 370,500.17, 511,008.11 and 318,905.08 is: 439,846.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,500.17 : 511,008.11 = 318,905.08 : x
  2. Step 2: Convert to fraction form
    370,500.17/511,008.11 = 318,905.08/x
  3. Step 3: Cross multiply
    370,500.17x = 511,008.11 × 318,905.08
  4. Step 4: Simplify right side
    370,500.17x = 162,963,079,645.16
  5. Step 5: Solve for x
    x = 162,963,079,645.16/370,500.17
  6. Step 6: Final answer
    x = 439,846.17

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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.