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Finding the Fourth Proportional to 450,158.95, 621,150.32 and 259,135.42

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Solution

The fourth proportional to 450,158.95, 621,150.32 and 259,135.42 is: 357,567.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,158.95 : 621,150.32 = 259,135.42 : x
  2. Step 2: Convert to fraction form
    450,158.95/621,150.32 = 259,135.42/x
  3. Step 3: Cross multiply
    450,158.95x = 621,150.32 × 259,135.42
  4. Step 4: Simplify right side
    450,158.95x = 160,962,045,950.58
  5. Step 5: Solve for x
    x = 160,962,045,950.58/450,158.95
  6. Step 6: Final answer
    x = 357,567.14

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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.