Home / 249,816.75-344,738.55-142,421.40

Finding the Fourth Proportional to 249,816.75, 344,738.55 and 142,421.40

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Solution

The fourth proportional to 249,816.75, 344,738.55 and 142,421.40 is: 196,536.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,816.75 : 344,738.55 = 142,421.40 : x
  2. Step 2: Convert to fraction form
    249,816.75/344,738.55 = 142,421.40/x
  3. Step 3: Cross multiply
    249,816.75x = 344,738.55 × 142,421.40
  4. Step 4: Simplify right side
    249,816.75x = 49,098,146,924.97
  5. Step 5: Solve for x
    x = 49,098,146,924.97/249,816.75
  6. Step 6: Final answer
    x = 196,536.65

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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.