Home / 306,788.16-423,367.36-172,655.04

Finding the Fourth Proportional to 306,788.16, 423,367.36 and 172,655.04

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Solution

The fourth proportional to 306,788.16, 423,367.36 and 172,655.04 is: 238,263.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,788.16 : 423,367.36 = 172,655.04 : x
  2. Step 2: Convert to fraction form
    306,788.16/423,367.36 = 172,655.04/x
  3. Step 3: Cross multiply
    306,788.16x = 423,367.36 × 172,655.04
  4. Step 4: Simplify right side
    306,788.16x = 73,096,508,475.49
  5. Step 5: Solve for x
    x = 73,096,508,475.49/306,788.16
  6. Step 6: Final answer
    x = 238,263.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.