Home / 306,557.40-423,086.04-185,695.14

Finding the Fourth Proportional to 306,557.40, 423,086.04 and 185,695.14

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Solution

The fourth proportional to 306,557.40, 423,086.04 and 185,695.14 is: 256,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,557.40 : 423,086.04 = 185,695.14 : x
  2. Step 2: Convert to fraction form
    306,557.40/423,086.04 = 185,695.14/x
  3. Step 3: Cross multiply
    306,557.40x = 423,086.04 × 185,695.14
  4. Step 4: Simplify right side
    306,557.40x = 78,565,021,429.85
  5. Step 5: Solve for x
    x = 78,565,021,429.85/306,557.40
  6. Step 6: Final answer
    x = 256,281.60

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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.