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Finding the Fourth Proportional to 357,903.72, 536,130.40 and 165,504.72

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Solution

The fourth proportional to 357,903.72, 536,130.40 and 165,504.72 is: 247,921.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,903.72 : 536,130.40 = 165,504.72 : x
  2. Step 2: Convert to fraction form
    357,903.72/536,130.40 = 165,504.72/x
  3. Step 3: Cross multiply
    357,903.72x = 536,130.40 × 165,504.72
  4. Step 4: Simplify right side
    357,903.72x = 88,732,111,735.49
  5. Step 5: Solve for x
    x = 88,732,111,735.49/357,903.72
  6. Step 6: Final answer
    x = 247,921.74

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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.