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Finding the Fourth Proportional to 375,509.80, 563,254.86 and 126,191.72

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Solution

The fourth proportional to 375,509.80, 563,254.86 and 126,191.72 is: 189,284.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,509.80 : 563,254.86 = 126,191.72 : x
  2. Step 2: Convert to fraction form
    375,509.80/563,254.86 = 126,191.72/x
  3. Step 3: Cross multiply
    375,509.80x = 563,254.86 × 126,191.72
  4. Step 4: Simplify right side
    375,509.80x = 71,078,099,581.76
  5. Step 5: Solve for x
    x = 71,078,099,581.76/375,509.80
  6. Step 6: Final answer
    x = 189,284.27

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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.