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Finding the Fourth Proportional to 291,730.40, 437,595.46 and 70,114.40

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Solution

The fourth proportional to 291,730.40, 437,595.46 and 70,114.40 is: 105,171.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,730.40 : 437,595.46 = 70,114.40 : x
  2. Step 2: Convert to fraction form
    291,730.40/437,595.46 = 70,114.40/x
  3. Step 3: Cross multiply
    291,730.40x = 437,595.46 × 70,114.40
  4. Step 4: Simplify right side
    291,730.40x = 30,681,743,120.62
  5. Step 5: Solve for x
    x = 30,681,743,120.62/291,730.40
  6. Step 6: Final answer
    x = 105,171.57

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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.