Home / 217,931.36-300,753.02-122,436.14

Finding the Fourth Proportional to 217,931.36, 300,753.02 and 122,436.14

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Solution

The fourth proportional to 217,931.36, 300,753.02 and 122,436.14 is: 168,966.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,931.36 : 300,753.02 = 122,436.14 : x
  2. Step 2: Convert to fraction form
    217,931.36/300,753.02 = 122,436.14/x
  3. Step 3: Cross multiply
    217,931.36x = 300,753.02 × 122,436.14
  4. Step 4: Simplify right side
    217,931.36x = 36,823,038,249.96
  5. Step 5: Solve for x
    x = 36,823,038,249.96/217,931.36
  6. Step 6: Final answer
    x = 168,966.22

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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.