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Finding the Fourth Proportional to 249,759, 344,660.40 and 136,579.32

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Solution

The fourth proportional to 249,759, 344,660.40 and 136,579.32 is: 188,475.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,759 : 344,660.40 = 136,579.32 : x
  2. Step 2: Convert to fraction form
    249,759/344,660.40 = 136,579.32/x
  3. Step 3: Cross multiply
    249,759x = 344,660.40 × 136,579.32
  4. Step 4: Simplify right side
    249,759x = 47,073,483,062.93
  5. Step 5: Solve for x
    x = 47,073,483,062.93/249,759
  6. Step 6: Final answer
    x = 188,475.62

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1.5x scale

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.