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Finding the Fourth Proportional to 297,009.20, 445,513.80 and 155,291.60

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Solution

The fourth proportional to 297,009.20, 445,513.80 and 155,291.60 is: 232,937.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,009.20 : 445,513.80 = 155,291.60 : x
  2. Step 2: Convert to fraction form
    297,009.20/445,513.80 = 155,291.60/x
  3. Step 3: Cross multiply
    297,009.20x = 445,513.80 × 155,291.60
  4. Step 4: Simplify right side
    297,009.20x = 69,184,550,824.08
  5. Step 5: Solve for x
    x = 69,184,550,824.08/297,009.20
  6. Step 6: Final answer
    x = 232,937.40

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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.