Home / 303,919.96-455,931.78-135,501.40

Finding the Fourth Proportional to 303,919.96, 455,931.78 and 135,501.40

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Solution

The fourth proportional to 303,919.96, 455,931.78 and 135,501.40 is: 203,275.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,919.96 : 455,931.78 = 135,501.40 : x
  2. Step 2: Convert to fraction form
    303,919.96/455,931.78 = 135,501.40/x
  3. Step 3: Cross multiply
    303,919.96x = 455,931.78 × 135,501.40
  4. Step 4: Simplify right side
    303,919.96x = 61,779,394,494.49
  5. Step 5: Solve for x
    x = 61,779,394,494.49/303,919.96
  6. Step 6: Final answer
    x = 203,275.21

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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.