Home / 401,389.02-553,923.09-220,117.50

Finding the Fourth Proportional to 401,389.02, 553,923.09 and 220,117.50

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Solution

The fourth proportional to 401,389.02, 553,923.09 and 220,117.50 is: 303,765.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,389.02 : 553,923.09 = 220,117.50 : x
  2. Step 2: Convert to fraction form
    401,389.02/553,923.09 = 220,117.50/x
  3. Step 3: Cross multiply
    401,389.02x = 553,923.09 × 220,117.50
  4. Step 4: Simplify right side
    401,389.02x = 121,928,165,763.08
  5. Step 5: Solve for x
    x = 121,928,165,763.08/401,389.02
  6. Step 6: Final answer
    x = 303,765.57

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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.