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Finding the Fourth Proportional to 311,315.40, 466,669.35 and 159,512.49

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Solution

The fourth proportional to 311,315.40, 466,669.35 and 159,512.49 is: 239,113.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,315.40 : 466,669.35 = 159,512.49 : x
  2. Step 2: Convert to fraction form
    311,315.40/466,669.35 = 159,512.49/x
  3. Step 3: Cross multiply
    311,315.40x = 466,669.35 × 159,512.49
  4. Step 4: Simplify right side
    311,315.40x = 74,439,590,025.18
  5. Step 5: Solve for x
    x = 74,439,590,025.18/311,315.40
  6. Step 6: Final answer
    x = 239,113.10

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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.