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Finding the Fourth Proportional to 556,980.89, 835,487.53 and 136,256.63

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Solution

The fourth proportional to 556,980.89, 835,487.53 and 136,256.63 is: 204,388.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,980.89 : 835,487.53 = 136,256.63 : x
  2. Step 2: Convert to fraction form
    556,980.89/835,487.53 = 136,256.63/x
  3. Step 3: Cross multiply
    556,980.89x = 835,487.53 × 136,256.63
  4. Step 4: Simplify right side
    556,980.89x = 113,840,710,726.75
  5. Step 5: Solve for x
    x = 113,840,710,726.75/556,980.89
  6. Step 6: Final answer
    x = 204,388.90

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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.