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Finding the Fourth Proportional to 630,023.88, 945,039.24 and 156,709.25

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Solution

The fourth proportional to 630,023.88, 945,039.24 and 156,709.25 is: 235,064.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,023.88 : 945,039.24 = 156,709.25 : x
  2. Step 2: Convert to fraction form
    630,023.88/945,039.24 = 156,709.25/x
  3. Step 3: Cross multiply
    630,023.88x = 945,039.24 × 156,709.25
  4. Step 4: Simplify right side
    630,023.88x = 148,096,389,339.67
  5. Step 5: Solve for x
    x = 148,096,389,339.67/630,023.88
  6. Step 6: Final answer
    x = 235,064.72

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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.