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Finding the Fourth Proportional to 303,348.48, 455,080.32 and 137,136

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Solution

The fourth proportional to 303,348.48, 455,080.32 and 137,136 is: 205,730.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,348.48 : 455,080.32 = 137,136 : x
  2. Step 2: Convert to fraction form
    303,348.48/455,080.32 = 137,136/x
  3. Step 3: Cross multiply
    303,348.48x = 455,080.32 × 137,136
  4. Step 4: Simplify right side
    303,348.48x = 62,407,894,763.52
  5. Step 5: Solve for x
    x = 62,407,894,763.52/303,348.48
  6. Step 6: Final answer
    x = 205,730.04

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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.