Home / 385,742.21-578,333.06-161,166.87

Finding the Fourth Proportional to 385,742.21, 578,333.06 and 161,166.87

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Solution

The fourth proportional to 385,742.21, 578,333.06 and 161,166.87 is: 241,633.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,742.21 : 578,333.06 = 161,166.87 : x
  2. Step 2: Convert to fraction form
    385,742.21/578,333.06 = 161,166.87/x
  3. Step 3: Cross multiply
    385,742.21x = 578,333.06 × 161,166.87
  4. Step 4: Simplify right side
    385,742.21x = 93,208,128,291.89
  5. Step 5: Solve for x
    x = 93,208,128,291.89/385,742.21
  6. Step 6: Final answer
    x = 241,633.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.