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Finding the Fourth Proportional to 228,617.10, 342,925.65 and 144,636.30

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Solution

The fourth proportional to 228,617.10, 342,925.65 and 144,636.30 is: 216,954.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,617.10 : 342,925.65 = 144,636.30 : x
  2. Step 2: Convert to fraction form
    228,617.10/342,925.65 = 144,636.30/x
  3. Step 3: Cross multiply
    228,617.10x = 342,925.65 × 144,636.30
  4. Step 4: Simplify right side
    228,617.10x = 49,599,497,191.10
  5. Step 5: Solve for x
    x = 49,599,497,191.10/228,617.10
  6. Step 6: Final answer
    x = 216,954.45

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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.