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Finding the Fourth Proportional to 357,785.16, 493,537.92 and 223,415.88

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Solution

The fourth proportional to 357,785.16, 493,537.92 and 223,415.88 is: 308,185.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,785.16 : 493,537.92 = 223,415.88 : x
  2. Step 2: Convert to fraction form
    357,785.16/493,537.92 = 223,415.88/x
  3. Step 3: Cross multiply
    357,785.16x = 493,537.92 × 223,415.88
  4. Step 4: Simplify right side
    357,785.16x = 110,264,208,710.17
  5. Step 5: Solve for x
    x = 110,264,208,710.17/357,785.16
  6. Step 6: Final answer
    x = 308,185.53

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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.