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Finding the Fourth Proportional to 249,896.40, 344,856.60 and 136,718.88

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Solution

The fourth proportional to 249,896.40, 344,856.60 and 136,718.88 is: 188,671.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,896.40 : 344,856.60 = 136,718.88 : x
  2. Step 2: Convert to fraction form
    249,896.40/344,856.60 = 136,718.88/x
  3. Step 3: Cross multiply
    249,896.40x = 344,856.60 × 136,718.88
  4. Step 4: Simplify right side
    249,896.40x = 47,148,408,112.61
  5. Step 5: Solve for x
    x = 47,148,408,112.61/249,896.40
  6. Step 6: Final answer
    x = 188,671.82

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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.