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Finding the Fourth Proportional to 249,554.76, 344,345.76 and 142,126.80

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Solution

The fourth proportional to 249,554.76, 344,345.76 and 142,126.80 is: 196,112.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,554.76 : 344,345.76 = 142,126.80 : x
  2. Step 2: Convert to fraction form
    249,554.76/344,345.76 = 142,126.80/x
  3. Step 3: Cross multiply
    249,554.76x = 344,345.76 × 142,126.80
  4. Step 4: Simplify right side
    249,554.76x = 48,940,760,962.37
  5. Step 5: Solve for x
    x = 48,940,760,962.37/249,554.76
  6. Step 6: Final answer
    x = 196,112.31

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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.