Home / 292,971.80-439,499.81-90,583.69

Finding the Fourth Proportional to 292,971.80, 439,499.81 and 90,583.69

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Solution

The fourth proportional to 292,971.80, 439,499.81 and 90,583.69 is: 135,888.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,971.80 : 439,499.81 = 90,583.69 : x
  2. Step 2: Convert to fraction form
    292,971.80/439,499.81 = 90,583.69/x
  3. Step 3: Cross multiply
    292,971.80x = 439,499.81 × 90,583.69
  4. Step 4: Simplify right side
    292,971.80x = 39,811,514,500.59
  5. Step 5: Solve for x
    x = 39,811,514,500.59/292,971.80
  6. Step 6: Final answer
    x = 135,888.55

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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.