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Finding the Fourth Proportional to 249,980.92, 344,995.22 and 142,555.48

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Solution

The fourth proportional to 249,980.92, 344,995.22 and 142,555.48 is: 196,738.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,980.92 : 344,995.22 = 142,555.48 : x
  2. Step 2: Convert to fraction form
    249,980.92/344,995.22 = 142,555.48/x
  3. Step 3: Cross multiply
    249,980.92x = 344,995.22 × 142,555.48
  4. Step 4: Simplify right side
    249,980.92x = 49,180,959,184.81
  5. Step 5: Solve for x
    x = 49,180,959,184.81/249,980.92
  6. Step 6: Final answer
    x = 196,738.85

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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.