Home / 249,712.80-344,565-142,287.36

Finding the Fourth Proportional to 249,712.80, 344,565 and 142,287.36

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Solution

The fourth proportional to 249,712.80, 344,565 and 142,287.36 is: 196,334.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,712.80 : 344,565 = 142,287.36 : x
  2. Step 2: Convert to fraction form
    249,712.80/344,565 = 142,287.36/x
  3. Step 3: Cross multiply
    249,712.80x = 344,565 × 142,287.36
  4. Step 4: Simplify right side
    249,712.80x = 49,027,244,198.40
  5. Step 5: Solve for x
    x = 49,027,244,198.40/249,712.80
  6. Step 6: Final answer
    x = 196,334.53

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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.