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Finding the Fourth Proportional to 249,676.13, 344,553 and 136,498.88

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Solution

The fourth proportional to 249,676.13, 344,553 and 136,498.88 is: 188,368.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,676.13 : 344,553 = 136,498.88 : x
  2. Step 2: Convert to fraction form
    249,676.13/344,553 = 136,498.88/x
  3. Step 3: Cross multiply
    249,676.13x = 344,553 × 136,498.88
  4. Step 4: Simplify right side
    249,676.13x = 47,031,098,600.64
  5. Step 5: Solve for x
    x = 47,031,098,600.64/249,676.13
  6. Step 6: Final answer
    x = 188,368.42

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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.