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Finding the Fourth Proportional to 354,085.35, 488,622.51 and 201,123.08

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Solution

The fourth proportional to 354,085.35, 488,622.51 and 201,123.08 is: 277,541.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,085.35 : 488,622.51 = 201,123.08 : x
  2. Step 2: Convert to fraction form
    354,085.35/488,622.51 = 201,123.08/x
  3. Step 3: Cross multiply
    354,085.35x = 488,622.51 × 201,123.08
  4. Step 4: Simplify right side
    354,085.35x = 98,273,261,725.42
  5. Step 5: Solve for x
    x = 98,273,261,725.42/354,085.35
  6. Step 6: Final answer
    x = 277,541.17

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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.