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Finding the Fourth Proportional to 369,477.64, 554,247.48 and 103,240.78

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Solution

The fourth proportional to 369,477.64, 554,247.48 and 103,240.78 is: 154,869.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,477.64 : 554,247.48 = 103,240.78 : x
  2. Step 2: Convert to fraction form
    369,477.64/554,247.48 = 103,240.78/x
  3. Step 3: Cross multiply
    369,477.64x = 554,247.48 × 103,240.78
  4. Step 4: Simplify right side
    369,477.64x = 57,220,942,148.23
  5. Step 5: Solve for x
    x = 57,220,942,148.23/369,477.64
  6. Step 6: Final answer
    x = 154,869.84

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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.