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Finding the Fourth Proportional to 368,302.37, 508,262.51 and 217,399.37

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Solution

The fourth proportional to 368,302.37, 508,262.51 and 217,399.37 is: 300,014.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,302.37 : 508,262.51 = 217,399.37 : x
  2. Step 2: Convert to fraction form
    368,302.37/508,262.51 = 217,399.37/x
  3. Step 3: Cross multiply
    368,302.37x = 508,262.51 × 217,399.37
  4. Step 4: Simplify right side
    368,302.37x = 110,495,947,470.81
  5. Step 5: Solve for x
    x = 110,495,947,470.81/368,302.37
  6. Step 6: Final answer
    x = 300,014.22

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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.