Home / 217,923.83-300,628.10-137,312.63

Finding the Fourth Proportional to 217,923.83, 300,628.10 and 137,312.63

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Solution

The fourth proportional to 217,923.83, 300,628.10 and 137,312.63 is: 189,424.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,923.83 : 300,628.10 = 137,312.63 : x
  2. Step 2: Convert to fraction form
    217,923.83/300,628.10 = 137,312.63/x
  3. Step 3: Cross multiply
    217,923.83x = 300,628.10 × 137,312.63
  4. Step 4: Simplify right side
    217,923.83x = 41,280,034,376.34
  5. Step 5: Solve for x
    x = 41,280,034,376.34/217,923.83
  6. Step 6: Final answer
    x = 189,424.14

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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.