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Finding the Fourth Proportional to 326,089.60, 488,529.60 and 185,430.40

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Solution

The fourth proportional to 326,089.60, 488,529.60 and 185,430.40 is: 277,801.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,089.60 : 488,529.60 = 185,430.40 : x
  2. Step 2: Convert to fraction form
    326,089.60/488,529.60 = 185,430.40/x
  3. Step 3: Cross multiply
    326,089.60x = 488,529.60 × 185,430.40
  4. Step 4: Simplify right side
    326,089.60x = 90,588,239,139.84
  5. Step 5: Solve for x
    x = 90,588,239,139.84/326,089.60
  6. Step 6: Final answer
    x = 277,801.68

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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.