Home / 207,004.20-310,506.30-136,145.40

Finding the Fourth Proportional to 207,004.20, 310,506.30 and 136,145.40

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Solution

The fourth proportional to 207,004.20, 310,506.30 and 136,145.40 is: 204,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,004.20 : 310,506.30 = 136,145.40 : x
  2. Step 2: Convert to fraction form
    207,004.20/310,506.30 = 136,145.40/x
  3. Step 3: Cross multiply
    207,004.20x = 310,506.30 × 136,145.40
  4. Step 4: Simplify right side
    207,004.20x = 42,274,004,416.02
  5. Step 5: Solve for x
    x = 42,274,004,416.02/207,004.20
  6. Step 6: Final answer
    x = 204,218.10

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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.