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Finding the Fourth Proportional to 224,687.86, 310,129.01 and 139,756.66

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Solution

The fourth proportional to 224,687.86, 310,129.01 and 139,756.66 is: 192,901.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,687.86 : 310,129.01 = 139,756.66 : x
  2. Step 2: Convert to fraction form
    224,687.86/310,129.01 = 139,756.66/x
  3. Step 3: Cross multiply
    224,687.86x = 310,129.01 × 139,756.66
  4. Step 4: Simplify right side
    224,687.86x = 43,342,594,606.71
  5. Step 5: Solve for x
    x = 43,342,594,606.71/224,687.86
  6. Step 6: Final answer
    x = 192,901.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.