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Finding the Fourth Proportional to 210,329.46, 315,174.96 and 154,206.93

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Solution

The fourth proportional to 210,329.46, 315,174.96 and 154,206.93 is: 231,076.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,329.46 : 315,174.96 = 154,206.93 : x
  2. Step 2: Convert to fraction form
    210,329.46/315,174.96 = 154,206.93/x
  3. Step 3: Cross multiply
    210,329.46x = 315,174.96 × 154,206.93
  4. Step 4: Simplify right side
    210,329.46x = 48,602,162,994.47
  5. Step 5: Solve for x
    x = 48,602,162,994.47/210,329.46
  6. Step 6: Final answer
    x = 231,076.35

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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.