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Finding the Fourth Proportional to 291,459.51, 437,204.79 and 91,795.50

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Solution

The fourth proportional to 291,459.51, 437,204.79 and 91,795.50 is: 137,698.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,459.51 : 437,204.79 = 91,795.50 : x
  2. Step 2: Convert to fraction form
    291,459.51/437,204.79 = 91,795.50/x
  3. Step 3: Cross multiply
    291,459.51x = 437,204.79 × 91,795.50
  4. Step 4: Simplify right side
    291,459.51x = 40,133,432,300.45
  5. Step 5: Solve for x
    x = 40,133,432,300.45/291,459.51
  6. Step 6: Final answer
    x = 137,698.14

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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.