Home / 219,614.40-329,421.60-136,670.40

Finding the Fourth Proportional to 219,614.40, 329,421.60 and 136,670.40

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Solution

The fourth proportional to 219,614.40, 329,421.60 and 136,670.40 is: 205,005.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,614.40 : 329,421.60 = 136,670.40 : x
  2. Step 2: Convert to fraction form
    219,614.40/329,421.60 = 136,670.40/x
  3. Step 3: Cross multiply
    219,614.40x = 329,421.60 × 136,670.40
  4. Step 4: Simplify right side
    219,614.40x = 45,022,181,840.64
  5. Step 5: Solve for x
    x = 45,022,181,840.64/219,614.40
  6. Step 6: Final answer
    x = 205,005.60

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1.5x scale

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.