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Finding the Fourth Proportional to 224,681.80, 310,015.20 and 143,042.72

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Solution

The fourth proportional to 224,681.80, 310,015.20 and 143,042.72 is: 197,369.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,681.80 : 310,015.20 = 143,042.72 : x
  2. Step 2: Convert to fraction form
    224,681.80/310,015.20 = 143,042.72/x
  3. Step 3: Cross multiply
    224,681.80x = 310,015.20 × 143,042.72
  4. Step 4: Simplify right side
    224,681.80x = 44,345,417,449.34
  5. Step 5: Solve for x
    x = 44,345,417,449.34/224,681.80
  6. Step 6: Final answer
    x = 197,369.87

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1.5x scale

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.