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Finding the Fourth Proportional to 252,362.40, 378,543.60 and 207,261.60

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Solution

The fourth proportional to 252,362.40, 378,543.60 and 207,261.60 is: 310,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,362.40 : 378,543.60 = 207,261.60 : x
  2. Step 2: Convert to fraction form
    252,362.40/378,543.60 = 207,261.60/x
  3. Step 3: Cross multiply
    252,362.40x = 378,543.60 × 207,261.60
  4. Step 4: Simplify right side
    252,362.40x = 78,457,552,205.76
  5. Step 5: Solve for x
    x = 78,457,552,205.76/252,362.40
  6. Step 6: Final answer
    x = 310,892.40

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1.5x scale

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.