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Finding the Fourth Proportional to 357,346.37, 493,368.77 and 221,525.46

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Solution

The fourth proportional to 357,346.37, 493,368.77 and 221,525.46 is: 305,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,346.37 : 493,368.77 = 221,525.46 : x
  2. Step 2: Convert to fraction form
    357,346.37/493,368.77 = 221,525.46/x
  3. Step 3: Cross multiply
    357,346.37x = 493,368.77 × 221,525.46
  4. Step 4: Simplify right side
    357,346.37x = 109,293,742,616.26
  5. Step 5: Solve for x
    x = 109,293,742,616.26/357,346.37
  6. Step 6: Final answer
    x = 305,848.20

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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.