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Finding the Fourth Proportional to 271,420.20, 407,130.30 and 121,501.35

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Solution

The fourth proportional to 271,420.20, 407,130.30 and 121,501.35 is: 182,252.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,420.20 : 407,130.30 = 121,501.35 : x
  2. Step 2: Convert to fraction form
    271,420.20/407,130.30 = 121,501.35/x
  3. Step 3: Cross multiply
    271,420.20x = 407,130.30 × 121,501.35
  4. Step 4: Simplify right side
    271,420.20x = 49,466,881,075.91
  5. Step 5: Solve for x
    x = 49,466,881,075.91/271,420.20
  6. Step 6: Final answer
    x = 182,252.03

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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.