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Finding the Fourth Proportional to 347,888.15, 521,233.12 and 271,957.16

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Solution

The fourth proportional to 347,888.15, 521,233.12 and 271,957.16 is: 407,467.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,888.15 : 521,233.12 = 271,957.16 : x
  2. Step 2: Convert to fraction form
    347,888.15/521,233.12 = 271,957.16/x
  3. Step 3: Cross multiply
    347,888.15x = 521,233.12 × 271,957.16
  4. Step 4: Simplify right side
    347,888.15x = 141,753,075,047.19
  5. Step 5: Solve for x
    x = 141,753,075,047.19/347,888.15
  6. Step 6: Final answer
    x = 407,467.39

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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.