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Finding the Fourth Proportional to 140,251.65, 210,424.18 and 45,484.93

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Solution

The fourth proportional to 140,251.65, 210,424.18 and 45,484.93 is: 68,242.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,251.65 : 210,424.18 = 45,484.93 : x
  2. Step 2: Convert to fraction form
    140,251.65/210,424.18 = 45,484.93/x
  3. Step 3: Cross multiply
    140,251.65x = 210,424.18 × 45,484.93
  4. Step 4: Simplify right side
    140,251.65x = 9,571,128,148.57
  5. Step 5: Solve for x
    x = 9,571,128,148.57/140,251.65
  6. Step 6: Final answer
    x = 68,242.53

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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.