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Finding the Fourth Proportional to 501,009.60, 751,543.20 and 146,078.40

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Solution

The fourth proportional to 501,009.60, 751,543.20 and 146,078.40 is: 219,126.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,009.60 : 751,543.20 = 146,078.40 : x
  2. Step 2: Convert to fraction form
    501,009.60/751,543.20 = 146,078.40/x
  3. Step 3: Cross multiply
    501,009.60x = 751,543.20 × 146,078.40
  4. Step 4: Simplify right side
    501,009.60x = 109,784,228,186.88
  5. Step 5: Solve for x
    x = 109,784,228,186.88/501,009.60
  6. Step 6: Final answer
    x = 219,126.00

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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.