Home / 401,436.62-553,931.61-220,100.83

Finding the Fourth Proportional to 401,436.62, 553,931.61 and 220,100.83

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Solution

The fourth proportional to 401,436.62, 553,931.61 and 220,100.83 is: 303,711.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,436.62 : 553,931.61 = 220,100.83 : x
  2. Step 2: Convert to fraction form
    401,436.62/553,931.61 = 220,100.83/x
  3. Step 3: Cross multiply
    401,436.62x = 553,931.61 × 220,100.83
  4. Step 4: Simplify right side
    401,436.62x = 121,920,807,124.24
  5. Step 5: Solve for x
    x = 121,920,807,124.24/401,436.62
  6. Step 6: Final answer
    x = 303,711.22

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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.