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Finding the Fourth Proportional to 309,098.40, 463,669.20 and 122,085.60

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Solution

The fourth proportional to 309,098.40, 463,669.20 and 122,085.60 is: 183,136.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,098.40 : 463,669.20 = 122,085.60 : x
  2. Step 2: Convert to fraction form
    309,098.40/463,669.20 = 122,085.60/x
  3. Step 3: Cross multiply
    309,098.40x = 463,669.20 × 122,085.60
  4. Step 4: Simplify right side
    309,098.40x = 56,607,332,483.52
  5. Step 5: Solve for x
    x = 56,607,332,483.52/309,098.40
  6. Step 6: Final answer
    x = 183,136.93

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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.