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Finding the Fourth Proportional to 553,530.60, 830,052.90 and 253,911.60

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Solution

The fourth proportional to 553,530.60, 830,052.90 and 253,911.60 is: 380,755.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,530.60 : 830,052.90 = 253,911.60 : x
  2. Step 2: Convert to fraction form
    553,530.60/830,052.90 = 253,911.60/x
  3. Step 3: Cross multiply
    553,530.60x = 830,052.90 × 253,911.60
  4. Step 4: Simplify right side
    553,530.60x = 210,760,059,923.64
  5. Step 5: Solve for x
    x = 210,760,059,923.64/553,530.60
  6. Step 6: Final answer
    x = 380,755.93

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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.