Home / 393,434.10-590,151.15-109,124.10

Finding the Fourth Proportional to 393,434.10, 590,151.15 and 109,124.10

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Solution

The fourth proportional to 393,434.10, 590,151.15 and 109,124.10 is: 163,686.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,434.10 : 590,151.15 = 109,124.10 : x
  2. Step 2: Convert to fraction form
    393,434.10/590,151.15 = 109,124.10/x
  3. Step 3: Cross multiply
    393,434.10x = 590,151.15 × 109,124.10
  4. Step 4: Simplify right side
    393,434.10x = 64,399,713,107.72
  5. Step 5: Solve for x
    x = 64,399,713,107.72/393,434.10
  6. Step 6: Final answer
    x = 163,686.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.