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Finding the Fourth Proportional to 292,282.10, 438,293.55 and 134,429.30

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Solution

The fourth proportional to 292,282.10, 438,293.55 and 134,429.30 is: 201,584.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,282.10 : 438,293.55 = 134,429.30 : x
  2. Step 2: Convert to fraction form
    292,282.10/438,293.55 = 134,429.30/x
  3. Step 3: Cross multiply
    292,282.10x = 438,293.55 × 134,429.30
  4. Step 4: Simplify right side
    292,282.10x = 58,919,495,121.02
  5. Step 5: Solve for x
    x = 58,919,495,121.02/292,282.10
  6. Step 6: Final answer
    x = 201,584.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.