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Finding the Fourth Proportional to 249,558, 344,389.60 and 136,380.64

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Solution

The fourth proportional to 249,558, 344,389.60 and 136,380.64 is: 188,205.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,558 : 344,389.60 = 136,380.64 : x
  2. Step 2: Convert to fraction form
    249,558/344,389.60 = 136,380.64/x
  3. Step 3: Cross multiply
    249,558x = 344,389.60 × 136,380.64
  4. Step 4: Simplify right side
    249,558x = 46,968,074,057.34
  5. Step 5: Solve for x
    x = 46,968,074,057.34/249,558
  6. Step 6: Final answer
    x = 188,205.04

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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.