Home / 315,742.72-473,294.95-135,945.42

Finding the Fourth Proportional to 315,742.72, 473,294.95 and 135,945.42

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Solution

The fourth proportional to 315,742.72, 473,294.95 and 135,945.42 is: 203,780.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,742.72 : 473,294.95 = 135,945.42 : x
  2. Step 2: Convert to fraction form
    315,742.72/473,294.95 = 135,945.42/x
  3. Step 3: Cross multiply
    315,742.72x = 473,294.95 × 135,945.42
  4. Step 4: Simplify right side
    315,742.72x = 64,342,280,421.77
  5. Step 5: Solve for x
    x = 64,342,280,421.77/315,742.72
  6. Step 6: Final answer
    x = 203,780.73

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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.