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Finding the Fourth Proportional to 249,710.71, 344,600.78 and 136,533.46

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Solution

The fourth proportional to 249,710.71, 344,600.78 and 136,533.46 is: 188,416.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,710.71 : 344,600.78 = 136,533.46 : x
  2. Step 2: Convert to fraction form
    249,710.71/344,600.78 = 136,533.46/x
  3. Step 3: Cross multiply
    249,710.71x = 344,600.78 × 136,533.46
  4. Step 4: Simplify right side
    249,710.71x = 47,049,536,812.10
  5. Step 5: Solve for x
    x = 47,049,536,812.10/249,710.71
  6. Step 6: Final answer
    x = 188,416.17

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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.