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Finding the Fourth Proportional to 631,695, 947,606.22 and 205,213.08

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Solution

The fourth proportional to 631,695, 947,606.22 and 205,213.08 is: 307,840.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,695 : 947,606.22 = 205,213.08 : x
  2. Step 2: Convert to fraction form
    631,695/947,606.22 = 205,213.08/x
  3. Step 3: Cross multiply
    631,695x = 947,606.22 × 205,213.08
  4. Step 4: Simplify right side
    631,695x = 194,461,191,033.36
  5. Step 5: Solve for x
    x = 194,461,191,033.36/631,695
  6. Step 6: Final answer
    x = 307,840.32

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1.5x scale

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.