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Finding the Fourth Proportional to 424,990.92, 637,048.98 and 188,445

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Solution

The fourth proportional to 424,990.92, 637,048.98 and 188,445 is: 282,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,990.92 : 637,048.98 = 188,445 : x
  2. Step 2: Convert to fraction form
    424,990.92/637,048.98 = 188,445/x
  3. Step 3: Cross multiply
    424,990.92x = 637,048.98 × 188,445
  4. Step 4: Simplify right side
    424,990.92x = 120,048,695,036.10
  5. Step 5: Solve for x
    x = 120,048,695,036.10/424,990.92
  6. Step 6: Final answer
    x = 282,473.55

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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.