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Finding the Fourth Proportional to 249,993.60, 344,988.36 and 136,815

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Solution

The fourth proportional to 249,993.60, 344,988.36 and 136,815 is: 188,803.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,993.60 : 344,988.36 = 136,815 : x
  2. Step 2: Convert to fraction form
    249,993.60/344,988.36 = 136,815/x
  3. Step 3: Cross multiply
    249,993.60x = 344,988.36 × 136,815
  4. Step 4: Simplify right side
    249,993.60x = 47,199,582,473.40
  5. Step 5: Solve for x
    x = 47,199,582,473.40/249,993.60
  6. Step 6: Final answer
    x = 188,803.16

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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.