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Finding the Fourth Proportional to 381,750.98, 572,499.30 and 153,987.77

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Solution

The fourth proportional to 381,750.98, 572,499.30 and 153,987.77 is: 230,930.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,750.98 : 572,499.30 = 153,987.77 : x
  2. Step 2: Convert to fraction form
    381,750.98/572,499.30 = 153,987.77/x
  3. Step 3: Cross multiply
    381,750.98x = 572,499.30 × 153,987.77
  4. Step 4: Simplify right side
    381,750.98x = 88,157,890,533.56
  5. Step 5: Solve for x
    x = 88,157,890,533.56/381,750.98
  6. Step 6: Final answer
    x = 230,930.36

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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.