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Finding the Fourth Proportional to 371,130.72, 512,159.76 and 201,364.80

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Solution

The fourth proportional to 371,130.72, 512,159.76 and 201,364.80 is: 277,883.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,130.72 : 512,159.76 = 201,364.80 : x
  2. Step 2: Convert to fraction form
    371,130.72/512,159.76 = 201,364.80/x
  3. Step 3: Cross multiply
    371,130.72x = 512,159.76 × 201,364.80
  4. Step 4: Simplify right side
    371,130.72x = 103,130,947,640.45
  5. Step 5: Solve for x
    x = 103,130,947,640.45/371,130.72
  6. Step 6: Final answer
    x = 277,883.08

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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.