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Finding the Fourth Proportional to 288,004.40, 432,006.60 and 267,009.20

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Solution

The fourth proportional to 288,004.40, 432,006.60 and 267,009.20 is: 400,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,004.40 : 432,006.60 = 267,009.20 : x
  2. Step 2: Convert to fraction form
    288,004.40/432,006.60 = 267,009.20/x
  3. Step 3: Cross multiply
    288,004.40x = 432,006.60 × 267,009.20
  4. Step 4: Simplify right side
    288,004.40x = 115,349,736,660.72
  5. Step 5: Solve for x
    x = 115,349,736,660.72/288,004.40
  6. Step 6: Final answer
    x = 400,513.80

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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.