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Finding the Fourth Proportional to 315,330.30, 472,899.87 and 115,666.92

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Solution

The fourth proportional to 315,330.30, 472,899.87 and 115,666.92 is: 173,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,330.30 : 472,899.87 = 115,666.92 : x
  2. Step 2: Convert to fraction form
    315,330.30/472,899.87 = 115,666.92/x
  3. Step 3: Cross multiply
    315,330.30x = 472,899.87 × 115,666.92
  4. Step 4: Simplify right side
    315,330.30x = 54,698,871,431.30
  5. Step 5: Solve for x
    x = 54,698,871,431.30/315,330.30
  6. Step 6: Final answer
    x = 173,465.32

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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.