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Finding the Fourth Proportional to 380,898.86, 571,266.27 and 156,038.81

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Solution

The fourth proportional to 380,898.86, 571,266.27 and 156,038.81 is: 234,024.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,898.86 : 571,266.27 = 156,038.81 : x
  2. Step 2: Convert to fraction form
    380,898.86/571,266.27 = 156,038.81/x
  3. Step 3: Cross multiply
    380,898.86x = 571,266.27 × 156,038.81
  4. Step 4: Simplify right side
    380,898.86x = 89,139,706,107.61
  5. Step 5: Solve for x
    x = 89,139,706,107.61/380,898.86
  6. Step 6: Final answer
    x = 234,024.61

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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.