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Finding the Fourth Proportional to 450,280.88, 621,326.76 and 256,713.56

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Solution

The fourth proportional to 450,280.88, 621,326.76 and 256,713.56 is: 354,230.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,280.88 : 621,326.76 = 256,713.56 : x
  2. Step 2: Convert to fraction form
    450,280.88/621,326.76 = 256,713.56/x
  3. Step 3: Cross multiply
    450,280.88x = 621,326.76 × 256,713.56
  4. Step 4: Simplify right side
    450,280.88x = 159,503,004,482.87
  5. Step 5: Solve for x
    x = 159,503,004,482.87/450,280.88
  6. Step 6: Final answer
    x = 354,230.02

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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.