Home / 350,178.64-525,432-172,588.84

Finding the Fourth Proportional to 350,178.64, 525,432 and 172,588.84

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Solution

The fourth proportional to 350,178.64, 525,432 and 172,588.84 is: 258,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,178.64 : 525,432 = 172,588.84 : x
  2. Step 2: Convert to fraction form
    350,178.64/525,432 = 172,588.84/x
  3. Step 3: Cross multiply
    350,178.64x = 525,432 × 172,588.84
  4. Step 4: Simplify right side
    350,178.64x = 90,683,699,378.88
  5. Step 5: Solve for x
    x = 90,683,699,378.88/350,178.64
  6. Step 6: Final answer
    x = 258,964.11

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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.