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Finding the Fourth Proportional to 368,477.64, 508,560.53 and 213,406.56

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Solution

The fourth proportional to 368,477.64, 508,560.53 and 213,406.56 is: 294,536.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,477.64 : 508,560.53 = 213,406.56 : x
  2. Step 2: Convert to fraction form
    368,477.64/508,560.53 = 213,406.56/x
  3. Step 3: Cross multiply
    368,477.64x = 508,560.53 × 213,406.56
  4. Step 4: Simplify right side
    368,477.64x = 108,530,152,192.04
  5. Step 5: Solve for x
    x = 108,530,152,192.04/368,477.64
  6. Step 6: Final answer
    x = 294,536.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.