Home / 290,749.80-435,833.10-133,091.40

Finding the Fourth Proportional to 290,749.80, 435,833.10 and 133,091.40

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Solution

The fourth proportional to 290,749.80, 435,833.10 and 133,091.40 is: 199,503.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,749.80 : 435,833.10 = 133,091.40 : x
  2. Step 2: Convert to fraction form
    290,749.80/435,833.10 = 133,091.40/x
  3. Step 3: Cross multiply
    290,749.80x = 435,833.10 × 133,091.40
  4. Step 4: Simplify right side
    290,749.80x = 58,005,637,445.34
  5. Step 5: Solve for x
    x = 58,005,637,445.34/290,749.80
  6. Step 6: Final answer
    x = 199,503.62

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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.