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Finding the Fourth Proportional to 461,988, 637,543.44 and 250,020

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Solution

The fourth proportional to 461,988, 637,543.44 and 250,020 is: 345,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,988 : 637,543.44 = 250,020 : x
  2. Step 2: Convert to fraction form
    461,988/637,543.44 = 250,020/x
  3. Step 3: Cross multiply
    461,988x = 637,543.44 × 250,020
  4. Step 4: Simplify right side
    461,988x = 159,398,610,868.80
  5. Step 5: Solve for x
    x = 159,398,610,868.80/461,988
  6. Step 6: Final answer
    x = 345,027.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.