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Finding the Fourth Proportional to 249,871.32, 344,830.57 and 136,694.07

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Solution

The fourth proportional to 249,871.32, 344,830.57 and 136,694.07 is: 188,642.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,871.32 : 344,830.57 = 136,694.07 : x
  2. Step 2: Convert to fraction form
    249,871.32/344,830.57 = 136,694.07/x
  3. Step 3: Cross multiply
    249,871.32x = 344,830.57 × 136,694.07
  4. Step 4: Simplify right side
    249,871.32x = 47,136,294,244.59
  5. Step 5: Solve for x
    x = 47,136,294,244.59/249,871.32
  6. Step 6: Final answer
    x = 188,642.27

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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.