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Finding the Fourth Proportional to 356,576.99, 492,003.52 and 211,318.74

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Solution

The fourth proportional to 356,576.99, 492,003.52 and 211,318.74 is: 291,576.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,576.99 : 492,003.52 = 211,318.74 : x
  2. Step 2: Convert to fraction form
    356,576.99/492,003.52 = 211,318.74/x
  3. Step 3: Cross multiply
    356,576.99x = 492,003.52 × 211,318.74
  4. Step 4: Simplify right side
    356,576.99x = 103,969,563,393.67
  5. Step 5: Solve for x
    x = 103,969,563,393.67/356,576.99
  6. Step 6: Final answer
    x = 291,576.76

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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.