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Finding the Fourth Proportional to 450,086.60, 621,178.26 and 259,108.04

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Solution

The fourth proportional to 450,086.60, 621,178.26 and 259,108.04 is: 357,602.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,086.60 : 621,178.26 = 259,108.04 : x
  2. Step 2: Convert to fraction form
    450,086.60/621,178.26 = 259,108.04/x
  3. Step 3: Cross multiply
    450,086.60x = 621,178.26 × 259,108.04
  4. Step 4: Simplify right side
    450,086.60x = 160,952,281,439.21
  5. Step 5: Solve for x
    x = 160,952,281,439.21/450,086.60
  6. Step 6: Final answer
    x = 357,602.92

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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.