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Finding the Fourth Proportional to 388,762.43, 536,497.52 and 216,675.59

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Solution

The fourth proportional to 388,762.43, 536,497.52 and 216,675.59 is: 299,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,762.43 : 536,497.52 = 216,675.59 : x
  2. Step 2: Convert to fraction form
    388,762.43/536,497.52 = 216,675.59/x
  3. Step 3: Cross multiply
    388,762.43x = 536,497.52 × 216,675.59
  4. Step 4: Simplify right side
    388,762.43x = 116,245,912,913.67
  5. Step 5: Solve for x
    x = 116,245,912,913.67/388,762.43
  6. Step 6: Final answer
    x = 299,015.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.