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Finding the Fourth Proportional to 630,295.99, 945,447.46 and 156,981.38

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Solution

The fourth proportional to 630,295.99, 945,447.46 and 156,981.38 is: 235,472.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,295.99 : 945,447.46 = 156,981.38 : x
  2. Step 2: Convert to fraction form
    630,295.99/945,447.46 = 156,981.38/x
  3. Step 3: Cross multiply
    630,295.99x = 945,447.46 × 156,981.38
  4. Step 4: Simplify right side
    630,295.99x = 148,417,641,868.60
  5. Step 5: Solve for x
    x = 148,417,641,868.60/630,295.99
  6. Step 6: Final answer
    x = 235,472.93

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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.