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Finding the Fourth Proportional to 145,815.11, 218,722.64 and 35,007.11

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Solution

The fourth proportional to 145,815.11, 218,722.64 and 35,007.11 is: 52,510.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,815.11 : 218,722.64 = 35,007.11 : x
  2. Step 2: Convert to fraction form
    145,815.11/218,722.64 = 35,007.11/x
  3. Step 3: Cross multiply
    145,815.11x = 218,722.64 × 35,007.11
  4. Step 4: Simplify right side
    145,815.11x = 7,656,846,249.32
  5. Step 5: Solve for x
    x = 7,656,846,249.32/145,815.11
  6. Step 6: Final answer
    x = 52,510.65

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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.