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Finding the Fourth Proportional to 630,165.31, 945,243.09 and 156,847.48

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Solution

The fourth proportional to 630,165.31, 945,243.09 and 156,847.48 is: 235,270.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,165.31 : 945,243.09 = 156,847.48 : x
  2. Step 2: Convert to fraction form
    630,165.31/945,243.09 = 156,847.48/x
  3. Step 3: Cross multiply
    630,165.31x = 945,243.09 × 156,847.48
  4. Step 4: Simplify right side
    630,165.31x = 148,258,996,653.91
  5. Step 5: Solve for x
    x = 148,258,996,653.91/630,165.31
  6. Step 6: Final answer
    x = 235,270.01

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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.