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Finding the Fourth Proportional to 243,515.87, 336,051.01 and 136,085.87

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Solution

The fourth proportional to 243,515.87, 336,051.01 and 136,085.87 is: 187,798.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,515.87 : 336,051.01 = 136,085.87 : x
  2. Step 2: Convert to fraction form
    243,515.87/336,051.01 = 136,085.87/x
  3. Step 3: Cross multiply
    243,515.87x = 336,051.01 × 136,085.87
  4. Step 4: Simplify right side
    243,515.87x = 45,731,795,070.46
  5. Step 5: Solve for x
    x = 45,731,795,070.46/243,515.87
  6. Step 6: Final answer
    x = 187,798.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.