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Finding the Fourth Proportional to 150,698.88, 207,962.88 and 83,631.36

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Solution

The fourth proportional to 150,698.88, 207,962.88 and 83,631.36 is: 115,410.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,698.88 : 207,962.88 = 83,631.36 : x
  2. Step 2: Convert to fraction form
    150,698.88/207,962.88 = 83,631.36/x
  3. Step 3: Cross multiply
    150,698.88x = 207,962.88 × 83,631.36
  4. Step 4: Simplify right side
    150,698.88x = 17,392,218,483.92
  5. Step 5: Solve for x
    x = 17,392,218,483.92/150,698.88
  6. Step 6: Final answer
    x = 115,410.40

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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.