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Finding the Fourth Proportional to 249,930, 344,903.40 and 136,752.75

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Solution

The fourth proportional to 249,930, 344,903.40 and 136,752.75 is: 188,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,930 : 344,903.40 = 136,752.75 : x
  2. Step 2: Convert to fraction form
    249,930/344,903.40 = 136,752.75/x
  3. Step 3: Cross multiply
    249,930x = 344,903.40 × 136,752.75
  4. Step 4: Simplify right side
    249,930x = 47,166,488,434.35
  5. Step 5: Solve for x
    x = 47,166,488,434.35/249,930
  6. Step 6: Final answer
    x = 188,718.80

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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.