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Finding the Fourth Proportional to 249,054, 343,694.60 and 159,630

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Solution

The fourth proportional to 249,054, 343,694.60 and 159,630 is: 220,289.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,054 : 343,694.60 = 159,630 : x
  2. Step 2: Convert to fraction form
    249,054/343,694.60 = 159,630/x
  3. Step 3: Cross multiply
    249,054x = 343,694.60 × 159,630
  4. Step 4: Simplify right side
    249,054x = 54,863,968,998
  5. Step 5: Solve for x
    x = 54,863,968,998/249,054
  6. Step 6: Final answer
    x = 220,289.45

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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.