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Finding the Fourth Proportional to 249,480, 344,289.69 and 136,310.04

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Solution

The fourth proportional to 249,480, 344,289.69 and 136,310.04 is: 188,111.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,480 : 344,289.69 = 136,310.04 : x
  2. Step 2: Convert to fraction form
    249,480/344,289.69 = 136,310.04/x
  3. Step 3: Cross multiply
    249,480x = 344,289.69 × 136,310.04
  4. Step 4: Simplify right side
    249,480x = 46,930,141,415.49
  5. Step 5: Solve for x
    x = 46,930,141,415.49/249,480
  6. Step 6: Final answer
    x = 188,111.84

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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.