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Finding the Fourth Proportional to 630,715.10, 945,970.32 and 181,333.58

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Solution

The fourth proportional to 630,715.10, 945,970.32 and 181,333.58 is: 271,970.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,715.10 : 945,970.32 = 181,333.58 : x
  2. Step 2: Convert to fraction form
    630,715.10/945,970.32 = 181,333.58/x
  3. Step 3: Cross multiply
    630,715.10x = 945,970.32 × 181,333.58
  4. Step 4: Simplify right side
    630,715.10x = 171,536,184,699.35
  5. Step 5: Solve for x
    x = 171,536,184,699.35/630,715.10
  6. Step 6: Final answer
    x = 271,970.95

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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.