Home / 347,145.48-521,014.10-136,931.04

Finding the Fourth Proportional to 347,145.48, 521,014.10 and 136,931.04

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Solution

The fourth proportional to 347,145.48, 521,014.10 and 136,931.04 is: 205,513.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,145.48 : 521,014.10 = 136,931.04 : x
  2. Step 2: Convert to fraction form
    347,145.48/521,014.10 = 136,931.04/x
  3. Step 3: Cross multiply
    347,145.48x = 521,014.10 × 136,931.04
  4. Step 4: Simplify right side
    347,145.48x = 71,343,001,883.01
  5. Step 5: Solve for x
    x = 71,343,001,883.01/347,145.48
  6. Step 6: Final answer
    x = 205,513.27

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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.