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Finding the Fourth Proportional to 342,712.18, 472,995.04 and 213,671.59

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Solution

The fourth proportional to 342,712.18, 472,995.04 and 213,671.59 is: 294,899.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,712.18 : 472,995.04 = 213,671.59 : x
  2. Step 2: Convert to fraction form
    342,712.18/472,995.04 = 213,671.59/x
  3. Step 3: Cross multiply
    342,712.18x = 472,995.04 × 213,671.59
  4. Step 4: Simplify right side
    342,712.18x = 101,065,599,893.94
  5. Step 5: Solve for x
    x = 101,065,599,893.94/342,712.18
  6. Step 6: Final answer
    x = 294,899.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.