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Finding the Fourth Proportional to 354,179.70, 488,779.40 and 201,215.10

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Solution

The fourth proportional to 354,179.70, 488,779.40 and 201,215.10 is: 277,683.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,179.70 : 488,779.40 = 201,215.10 : x
  2. Step 2: Convert to fraction form
    354,179.70/488,779.40 = 201,215.10/x
  3. Step 3: Cross multiply
    354,179.70x = 488,779.40 × 201,215.10
  4. Step 4: Simplify right side
    354,179.70x = 98,349,798,184.90
  5. Step 5: Solve for x
    x = 98,349,798,184.90/354,179.70
  6. Step 6: Final answer
    x = 277,683.33

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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.