Home / 320,140.84-480,145.63-117,667.16

Finding the Fourth Proportional to 320,140.84, 480,145.63 and 117,667.16

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Solution

The fourth proportional to 320,140.84, 480,145.63 and 117,667.16 is: 176,476.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,140.84 : 480,145.63 = 117,667.16 : x
  2. Step 2: Convert to fraction form
    320,140.84/480,145.63 = 117,667.16/x
  3. Step 3: Cross multiply
    320,140.84x = 480,145.63 × 117,667.16
  4. Step 4: Simplify right side
    320,140.84x = 56,497,372,080.18
  5. Step 5: Solve for x
    x = 56,497,372,080.18/320,140.84
  6. Step 6: Final answer
    x = 176,476.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.