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Finding the Fourth Proportional to 630,406.05, 945,615.95 and 181,130.64

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Solution

The fourth proportional to 630,406.05, 945,615.95 and 181,130.64 is: 271,697.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,406.05 : 945,615.95 = 181,130.64 : x
  2. Step 2: Convert to fraction form
    630,406.05/945,615.95 = 181,130.64/x
  3. Step 3: Cross multiply
    630,406.05x = 945,615.95 × 181,130.64
  4. Step 4: Simplify right side
    630,406.05x = 171,280,021,312.06
  5. Step 5: Solve for x
    x = 171,280,021,312.06/630,406.05
  6. Step 6: Final answer
    x = 271,697.93

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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.