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Finding the Fourth Proportional to 228,387.87, 342,614.61 and 70,628.63

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Solution

The fourth proportional to 228,387.87, 342,614.61 and 70,628.63 is: 105,953.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,387.87 : 342,614.61 = 70,628.63 : x
  2. Step 2: Convert to fraction form
    228,387.87/342,614.61 = 70,628.63/x
  3. Step 3: Cross multiply
    228,387.87x = 342,614.61 × 70,628.63
  4. Step 4: Simplify right side
    228,387.87x = 24,198,398,809.21
  5. Step 5: Solve for x
    x = 24,198,398,809.21/228,387.87
  6. Step 6: Final answer
    x = 105,953.08

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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.