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Finding the Fourth Proportional to 140,218.74, 210,328.11 and 35,037.72

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Solution

The fourth proportional to 140,218.74, 210,328.11 and 35,037.72 is: 52,556.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,218.74 : 210,328.11 = 35,037.72 : x
  2. Step 2: Convert to fraction form
    140,218.74/210,328.11 = 35,037.72/x
  3. Step 3: Cross multiply
    140,218.74x = 210,328.11 × 35,037.72
  4. Step 4: Simplify right side
    140,218.74x = 7,369,417,426.31
  5. Step 5: Solve for x
    x = 7,369,417,426.31/140,218.74
  6. Step 6: Final answer
    x = 52,556.58

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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.