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Finding the Fourth Proportional to 384,630.30, 577,008.09 and 118,390.86

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Solution

The fourth proportional to 384,630.30, 577,008.09 and 118,390.86 is: 177,605.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,630.30 : 577,008.09 = 118,390.86 : x
  2. Step 2: Convert to fraction form
    384,630.30/577,008.09 = 118,390.86/x
  3. Step 3: Cross multiply
    384,630.30x = 577,008.09 × 118,390.86
  4. Step 4: Simplify right side
    384,630.30x = 68,312,484,002.06
  5. Step 5: Solve for x
    x = 68,312,484,002.06/384,630.30
  6. Step 6: Final answer
    x = 177,605.57

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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.