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Finding the Fourth Proportional to 249,165.65, 343,729.02 and 163,086.74

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Solution

The fourth proportional to 249,165.65, 343,729.02 and 163,086.74 is: 224,981.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,165.65 : 343,729.02 = 163,086.74 : x
  2. Step 2: Convert to fraction form
    249,165.65/343,729.02 = 163,086.74/x
  3. Step 3: Cross multiply
    249,165.65x = 343,729.02 × 163,086.74
  4. Step 4: Simplify right side
    249,165.65x = 56,057,643,596.55
  5. Step 5: Solve for x
    x = 56,057,643,596.55/249,165.65
  6. Step 6: Final answer
    x = 224,981.43

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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.