Home / 299,888.20-413,856.78-163,931.20

Finding the Fourth Proportional to 299,888.20, 413,856.78 and 163,931.20

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Solution

The fourth proportional to 299,888.20, 413,856.78 and 163,931.20 is: 226,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,888.20 : 413,856.78 = 163,931.20 : x
  2. Step 2: Convert to fraction form
    299,888.20/413,856.78 = 163,931.20/x
  3. Step 3: Cross multiply
    299,888.20x = 413,856.78 × 163,931.20
  4. Step 4: Simplify right side
    299,888.20x = 67,844,038,573.54
  5. Step 5: Solve for x
    x = 67,844,038,573.54/299,888.20
  6. Step 6: Final answer
    x = 226,231.10

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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.