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Finding the Fourth Proportional to 381,903.37, 572,962.29 and 112,037.88

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Solution

The fourth proportional to 381,903.37, 572,962.29 and 112,037.88 is: 168,088.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,903.37 : 572,962.29 = 112,037.88 : x
  2. Step 2: Convert to fraction form
    381,903.37/572,962.29 = 112,037.88/x
  3. Step 3: Cross multiply
    381,903.37x = 572,962.29 × 112,037.88
  4. Step 4: Simplify right side
    381,903.37x = 64,193,482,650.22
  5. Step 5: Solve for x
    x = 64,193,482,650.22/381,903.37
  6. Step 6: Final answer
    x = 168,088.28

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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.