Home / 292,660.76-439,032.96-90,273.89

Finding the Fourth Proportional to 292,660.76, 439,032.96 and 90,273.89

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Solution

The fourth proportional to 292,660.76, 439,032.96 and 90,273.89 is: 135,423.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,660.76 : 439,032.96 = 90,273.89 : x
  2. Step 2: Convert to fraction form
    292,660.76/439,032.96 = 90,273.89/x
  3. Step 3: Cross multiply
    292,660.76x = 439,032.96 × 90,273.89
  4. Step 4: Simplify right side
    292,660.76x = 39,633,214,235.00
  5. Step 5: Solve for x
    x = 39,633,214,235.00/292,660.76
  6. Step 6: Final answer
    x = 135,423.74

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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.