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Finding the Fourth Proportional to 288,033.40, 432,050.10 and 256,540.60

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Solution

The fourth proportional to 288,033.40, 432,050.10 and 256,540.60 is: 384,810.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,033.40 : 432,050.10 = 256,540.60 : x
  2. Step 2: Convert to fraction form
    288,033.40/432,050.10 = 256,540.60/x
  3. Step 3: Cross multiply
    288,033.40x = 432,050.10 × 256,540.60
  4. Step 4: Simplify right side
    288,033.40x = 110,838,391,884.06
  5. Step 5: Solve for x
    x = 110,838,391,884.06/288,033.40
  6. Step 6: Final answer
    x = 384,810.90

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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.