Home / 401,320.61-553,845.07-238,073.77

Finding the Fourth Proportional to 401,320.61, 553,845.07 and 238,073.77

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Solution

The fourth proportional to 401,320.61, 553,845.07 and 238,073.77 is: 328,555.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,320.61 : 553,845.07 = 238,073.77 : x
  2. Step 2: Convert to fraction form
    401,320.61/553,845.07 = 238,073.77/x
  3. Step 3: Cross multiply
    401,320.61x = 553,845.07 × 238,073.77
  4. Step 4: Simplify right side
    401,320.61x = 131,855,980,346.17
  5. Step 5: Solve for x
    x = 131,855,980,346.17/401,320.61
  6. Step 6: Final answer
    x = 328,555.22

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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.