Home / 328,839.84-493,248.24-139,248

Finding the Fourth Proportional to 328,839.84, 493,248.24 and 139,248

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Solution

The fourth proportional to 328,839.84, 493,248.24 and 139,248 is: 208,867.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,839.84 : 493,248.24 = 139,248 : x
  2. Step 2: Convert to fraction form
    328,839.84/493,248.24 = 139,248/x
  3. Step 3: Cross multiply
    328,839.84x = 493,248.24 × 139,248
  4. Step 4: Simplify right side
    328,839.84x = 68,683,830,923.52
  5. Step 5: Solve for x
    x = 68,683,830,923.52/328,839.84
  6. Step 6: Final answer
    x = 208,867.12

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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.