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Finding the Fourth Proportional to 249,973.33, 344,954.49 and 142,578

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Solution

The fourth proportional to 249,973.33, 344,954.49 and 142,578 is: 196,752.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,973.33 : 344,954.49 = 142,578 : x
  2. Step 2: Convert to fraction form
    249,973.33/344,954.49 = 142,578/x
  3. Step 3: Cross multiply
    249,973.33x = 344,954.49 × 142,578
  4. Step 4: Simplify right side
    249,973.33x = 49,182,921,275.22
  5. Step 5: Solve for x
    x = 49,182,921,275.22/249,973.33
  6. Step 6: Final answer
    x = 196,752.67

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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.