Home / 418,225.21-626,985.15-181,389.51

Finding the Fourth Proportional to 418,225.21, 626,985.15 and 181,389.51

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Solution

The fourth proportional to 418,225.21, 626,985.15 and 181,389.51 is: 271,931.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,225.21 : 626,985.15 = 181,389.51 : x
  2. Step 2: Convert to fraction form
    418,225.21/626,985.15 = 181,389.51/x
  3. Step 3: Cross multiply
    418,225.21x = 626,985.15 × 181,389.51
  4. Step 4: Simplify right side
    418,225.21x = 113,728,529,135.78
  5. Step 5: Solve for x
    x = 113,728,529,135.78/418,225.21
  6. Step 6: Final answer
    x = 271,931.31

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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.