Home / 401,436.37-553,931.27-220,100.58

Finding the Fourth Proportional to 401,436.37, 553,931.27 and 220,100.58

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Solution

The fourth proportional to 401,436.37, 553,931.27 and 220,100.58 is: 303,710.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,436.37 : 553,931.27 = 220,100.58 : x
  2. Step 2: Convert to fraction form
    401,436.37/553,931.27 = 220,100.58/x
  3. Step 3: Cross multiply
    401,436.37x = 553,931.27 × 220,100.58
  4. Step 4: Simplify right side
    401,436.37x = 121,920,593,807.14
  5. Step 5: Solve for x
    x = 121,920,593,807.14/401,436.37
  6. Step 6: Final answer
    x = 303,710.88

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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.