Home / 349,423.12-524,257.64-172,054.72

Finding the Fourth Proportional to 349,423.12, 524,257.64 and 172,054.72

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Solution

The fourth proportional to 349,423.12, 524,257.64 and 172,054.72 is: 258,142.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,423.12 : 524,257.64 = 172,054.72 : x
  2. Step 2: Convert to fraction form
    349,423.12/524,257.64 = 172,054.72/x
  3. Step 3: Cross multiply
    349,423.12x = 524,257.64 × 172,054.72
  4. Step 4: Simplify right side
    349,423.12x = 90,201,001,458.06
  5. Step 5: Solve for x
    x = 90,201,001,458.06/349,423.12
  6. Step 6: Final answer
    x = 258,142.63

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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.