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Finding the Fourth Proportional to 249,809.04, 344,744.71 and 136,631.78

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Solution

The fourth proportional to 249,809.04, 344,744.71 and 136,631.78 is: 188,556.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,809.04 : 344,744.71 = 136,631.78 : x
  2. Step 2: Convert to fraction form
    249,809.04/344,744.71 = 136,631.78/x
  3. Step 3: Cross multiply
    249,809.04x = 344,744.71 × 136,631.78
  4. Step 4: Simplify right side
    249,809.04x = 47,103,083,372.88
  5. Step 5: Solve for x
    x = 47,103,083,372.88/249,809.04
  6. Step 6: Final answer
    x = 188,556.36

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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.