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Finding the Fourth Proportional to 320,501.77, 480,016.56 and 160,085.32

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Solution

The fourth proportional to 320,501.77, 480,016.56 and 160,085.32 is: 239,760.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,501.77 : 480,016.56 = 160,085.32 : x
  2. Step 2: Convert to fraction form
    320,501.77/480,016.56 = 160,085.32/x
  3. Step 3: Cross multiply
    320,501.77x = 480,016.56 × 160,085.32
  4. Step 4: Simplify right side
    320,501.77x = 76,843,604,013.18
  5. Step 5: Solve for x
    x = 76,843,604,013.18/320,501.77
  6. Step 6: Final answer
    x = 239,760.31

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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.