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Finding the Fourth Proportional to 291,901.53, 437,870.75 and 123,390.45

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Solution

The fourth proportional to 291,901.53, 437,870.75 and 123,390.45 is: 185,093.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,901.53 : 437,870.75 = 123,390.45 : x
  2. Step 2: Convert to fraction form
    291,901.53/437,870.75 = 123,390.45/x
  3. Step 3: Cross multiply
    291,901.53x = 437,870.75 × 123,390.45
  4. Step 4: Simplify right side
    291,901.53x = 54,029,068,884.34
  5. Step 5: Solve for x
    x = 54,029,068,884.34/291,901.53
  6. Step 6: Final answer
    x = 185,093.48

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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.