Home / 320,025.36-480,036.30-130,484.98

Finding the Fourth Proportional to 320,025.36, 480,036.30 and 130,484.98

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Solution

The fourth proportional to 320,025.36, 480,036.30 and 130,484.98 is: 195,726.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,025.36 : 480,036.30 = 130,484.98 : x
  2. Step 2: Convert to fraction form
    320,025.36/480,036.30 = 130,484.98/x
  3. Step 3: Cross multiply
    320,025.36x = 480,036.30 × 130,484.98
  4. Step 4: Simplify right side
    320,025.36x = 62,637,527,004.77
  5. Step 5: Solve for x
    x = 62,637,527,004.77/320,025.36
  6. Step 6: Final answer
    x = 195,726.76

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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.