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Finding the Fourth Proportional to 272,813.60, 409,220.40 and 166,525.40

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Solution

The fourth proportional to 272,813.60, 409,220.40 and 166,525.40 is: 249,788.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,813.60 : 409,220.40 = 166,525.40 : x
  2. Step 2: Convert to fraction form
    272,813.60/409,220.40 = 166,525.40/x
  3. Step 3: Cross multiply
    272,813.60x = 409,220.40 × 166,525.40
  4. Step 4: Simplify right side
    272,813.60x = 68,145,590,798.16
  5. Step 5: Solve for x
    x = 68,145,590,798.16/272,813.60
  6. Step 6: Final answer
    x = 249,788.10

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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.