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Finding the Fourth Proportional to 349,544, 524,317.92 and 86,888

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Solution

The fourth proportional to 349,544, 524,317.92 and 86,888 is: 130,332.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,544 : 524,317.92 = 86,888 : x
  2. Step 2: Convert to fraction form
    349,544/524,317.92 = 86,888/x
  3. Step 3: Cross multiply
    349,544x = 524,317.92 × 86,888
  4. Step 4: Simplify right side
    349,544x = 45,556,935,432.96
  5. Step 5: Solve for x
    x = 45,556,935,432.96/349,544
  6. Step 6: Final answer
    x = 130,332.48

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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.