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Finding the Fourth Proportional to 210,225.57, 315,391.61 and 60,462.64

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Solution

The fourth proportional to 210,225.57, 315,391.61 and 60,462.64 is: 90,709.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,225.57 : 315,391.61 = 60,462.64 : x
  2. Step 2: Convert to fraction form
    210,225.57/315,391.61 = 60,462.64/x
  3. Step 3: Cross multiply
    210,225.57x = 315,391.61 × 60,462.64
  4. Step 4: Simplify right side
    210,225.57x = 19,069,409,374.45
  5. Step 5: Solve for x
    x = 19,069,409,374.45/210,225.57
  6. Step 6: Final answer
    x = 90,709.28

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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.