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Finding the Fourth Proportional to 356,557.50, 492,049.35 and 213,323.58

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Solution

The fourth proportional to 356,557.50, 492,049.35 and 213,323.58 is: 294,386.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,557.50 : 492,049.35 = 213,323.58 : x
  2. Step 2: Convert to fraction form
    356,557.50/492,049.35 = 213,323.58/x
  3. Step 3: Cross multiply
    356,557.50x = 492,049.35 × 213,323.58
  4. Step 4: Simplify right side
    356,557.50x = 104,965,728,878.67
  5. Step 5: Solve for x
    x = 104,965,728,878.67/356,557.50
  6. Step 6: Final answer
    x = 294,386.54

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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.