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Finding the Fourth Proportional to 388,811.88, 536,547.24 and 237,908.88

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Solution

The fourth proportional to 388,811.88, 536,547.24 and 237,908.88 is: 328,306.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,811.88 : 536,547.24 = 237,908.88 : x
  2. Step 2: Convert to fraction form
    388,811.88/536,547.24 = 237,908.88/x
  3. Step 3: Cross multiply
    388,811.88x = 536,547.24 × 237,908.88
  4. Step 4: Simplify right side
    388,811.88x = 127,649,352,935.49
  5. Step 5: Solve for x
    x = 127,649,352,935.49/388,811.88
  6. Step 6: Final answer
    x = 328,306.21

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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.