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Finding the Fourth Proportional to 430.86, 646.29 and 184.01

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Solution

The fourth proportional to 430.86, 646.29 and 184.01 is: 276.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    430.86 : 646.29 = 184.01 : x
  2. Step 2: Convert to fraction form
    430.86/646.29 = 184.01/x
  3. Step 3: Cross multiply
    430.86x = 646.29 × 184.01
  4. Step 4: Simplify right side
    430.86x = 118,920.59
  5. Step 5: Solve for x
    x = 118,920.59/430.86
  6. Step 6: Final answer
    x = 276.01

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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.