Home / 307,115.02-423,812.97-171,145.98

Finding the Fourth Proportional to 307,115.02, 423,812.97 and 171,145.98

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Solution

The fourth proportional to 307,115.02, 423,812.97 and 171,145.98 is: 236,178.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,115.02 : 423,812.97 = 171,145.98 : x
  2. Step 2: Convert to fraction form
    307,115.02/423,812.97 = 171,145.98/x
  3. Step 3: Cross multiply
    307,115.02x = 423,812.97 × 171,145.98
  4. Step 4: Simplify right side
    307,115.02x = 72,533,883,968.30
  5. Step 5: Solve for x
    x = 72,533,883,968.30/307,115.02
  6. Step 6: Final answer
    x = 236,178.24

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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.