Home / 409,132.48-613,782.40-172,475.20

Finding the Fourth Proportional to 409,132.48, 613,782.40 and 172,475.20

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Solution

The fourth proportional to 409,132.48, 613,782.40 and 172,475.20 is: 258,748.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,132.48 : 613,782.40 = 172,475.20 : x
  2. Step 2: Convert to fraction form
    409,132.48/613,782.40 = 172,475.20/x
  3. Step 3: Cross multiply
    409,132.48x = 613,782.40 × 172,475.20
  4. Step 4: Simplify right side
    409,132.48x = 105,862,242,196.48
  5. Step 5: Solve for x
    x = 105,862,242,196.48/409,132.48
  6. Step 6: Final answer
    x = 258,748.08

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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.