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Finding the Fourth Proportional to 615,352.20, 922,590.90 and 236,126.40

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Solution

The fourth proportional to 615,352.20, 922,590.90 and 236,126.40 is: 354,021.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,352.20 : 922,590.90 = 236,126.40 : x
  2. Step 2: Convert to fraction form
    615,352.20/922,590.90 = 236,126.40/x
  3. Step 3: Cross multiply
    615,352.20x = 922,590.90 × 236,126.40
  4. Step 4: Simplify right side
    615,352.20x = 217,848,067,889.76
  5. Step 5: Solve for x
    x = 217,848,067,889.76/615,352.20
  6. Step 6: Final answer
    x = 354,021.76

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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.