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Finding the Fourth Proportional to 630,007.92, 945,015.32 and 156,693.30

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Solution

The fourth proportional to 630,007.92, 945,015.32 and 156,693.30 is: 235,040.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,007.92 : 945,015.32 = 156,693.30 : x
  2. Step 2: Convert to fraction form
    630,007.92/945,015.32 = 156,693.30/x
  3. Step 3: Cross multiply
    630,007.92x = 945,015.32 × 156,693.30
  4. Step 4: Simplify right side
    630,007.92x = 148,077,569,041.36
  5. Step 5: Solve for x
    x = 148,077,569,041.36/630,007.92
  6. Step 6: Final answer
    x = 235,040.81

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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.