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Finding the Fourth Proportional to 306,439.52, 459,661.23 and 106,763.63

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Solution

The fourth proportional to 306,439.52, 459,661.23 and 106,763.63 is: 160,146.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,439.52 : 459,661.23 = 106,763.63 : x
  2. Step 2: Convert to fraction form
    306,439.52/459,661.23 = 106,763.63/x
  3. Step 3: Cross multiply
    306,439.52x = 459,661.23 × 106,763.63
  4. Step 4: Simplify right side
    306,439.52x = 49,075,101,485.06
  5. Step 5: Solve for x
    x = 49,075,101,485.06/306,439.52
  6. Step 6: Final answer
    x = 160,146.12

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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.