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Finding the Fourth Proportional to 249,000.72, 343,622.04 and 135,825.84

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Solution

The fourth proportional to 249,000.72, 343,622.04 and 135,825.84 is: 187,440.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,000.72 : 343,622.04 = 135,825.84 : x
  2. Step 2: Convert to fraction form
    249,000.72/343,622.04 = 135,825.84/x
  3. Step 3: Cross multiply
    249,000.72x = 343,622.04 × 135,825.84
  4. Step 4: Simplify right side
    249,000.72x = 46,672,752,225.51
  5. Step 5: Solve for x
    x = 46,672,752,225.51/249,000.72
  6. Step 6: Final answer
    x = 187,440.23

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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.