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Finding the Fourth Proportional to 650,386.60, 975,725.70 and 201,128.20

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Solution

The fourth proportional to 650,386.60, 975,725.70 and 201,128.20 is: 301,737.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,386.60 : 975,725.70 = 201,128.20 : x
  2. Step 2: Convert to fraction form
    650,386.60/975,725.70 = 201,128.20/x
  3. Step 3: Cross multiply
    650,386.60x = 975,725.70 × 201,128.20
  4. Step 4: Simplify right side
    650,386.60x = 196,245,953,734.74
  5. Step 5: Solve for x
    x = 196,245,953,734.74/650,386.60
  6. Step 6: Final answer
    x = 301,737.39

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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.