Home / 320,056.11-480,385.49-162,397.71

Finding the Fourth Proportional to 320,056.11, 480,385.49 and 162,397.71

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Solution

The fourth proportional to 320,056.11, 480,385.49 and 162,397.71 is: 243,749.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,056.11 : 480,385.49 = 162,397.71 : x
  2. Step 2: Convert to fraction form
    320,056.11/480,385.49 = 162,397.71/x
  3. Step 3: Cross multiply
    320,056.11x = 480,385.49 × 162,397.71
  4. Step 4: Simplify right side
    320,056.11x = 78,013,502,681.24
  5. Step 5: Solve for x
    x = 78,013,502,681.24/320,056.11
  6. Step 6: Final answer
    x = 243,749.46

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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.