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Finding the Fourth Proportional to 307,533.88, 424,019.71 and 252,895.11

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Solution

The fourth proportional to 307,533.88, 424,019.71 and 252,895.11 is: 348,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,533.88 : 424,019.71 = 252,895.11 : x
  2. Step 2: Convert to fraction form
    307,533.88/424,019.71 = 252,895.11/x
  3. Step 3: Cross multiply
    307,533.88x = 424,019.71 × 252,895.11
  4. Step 4: Simplify right side
    307,533.88x = 107,232,512,313.77
  5. Step 5: Solve for x
    x = 107,232,512,313.77/307,533.88
  6. Step 6: Final answer
    x = 348,685.20

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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.