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Finding the Fourth Proportional to 384,964.70, 531,066.75 and 249,041.30

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Solution

The fourth proportional to 384,964.70, 531,066.75 and 249,041.30 is: 343,557.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,964.70 : 531,066.75 = 249,041.30 : x
  2. Step 2: Convert to fraction form
    384,964.70/531,066.75 = 249,041.30/x
  3. Step 3: Cross multiply
    384,964.70x = 531,066.75 × 249,041.30
  4. Step 4: Simplify right side
    384,964.70x = 132,257,553,806.78
  5. Step 5: Solve for x
    x = 132,257,553,806.78/384,964.70
  6. Step 6: Final answer
    x = 343,557.61

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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.