Home / 320,864.32-442,798-175,667.68

Finding the Fourth Proportional to 320,864.32, 442,798 and 175,667.68

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Solution

The fourth proportional to 320,864.32, 442,798 and 175,667.68 is: 242,424.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,864.32 : 442,798 = 175,667.68 : x
  2. Step 2: Convert to fraction form
    320,864.32/442,798 = 175,667.68/x
  3. Step 3: Cross multiply
    320,864.32x = 442,798 × 175,667.68
  4. Step 4: Simplify right side
    320,864.32x = 77,785,297,368.64
  5. Step 5: Solve for x
    x = 77,785,297,368.64/320,864.32
  6. Step 6: Final answer
    x = 242,424.27

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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.