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Finding the Fourth Proportional to 371,185.79, 512,237.75 and 201,419.91

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Solution

The fourth proportional to 371,185.79, 512,237.75 and 201,419.91 is: 277,960.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,185.79 : 512,237.75 = 201,419.91 : x
  2. Step 2: Convert to fraction form
    371,185.79/512,237.75 = 201,419.91/x
  3. Step 3: Cross multiply
    371,185.79x = 512,237.75 × 201,419.91
  4. Step 4: Simplify right side
    371,185.79x = 103,174,881,503.60
  5. Step 5: Solve for x
    x = 103,174,881,503.60/371,185.79
  6. Step 6: Final answer
    x = 277,960.21

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1.5x scale

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.