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Finding the Fourth Proportional to 228,352.16, 315,120.96 and 124,985.84

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Solution

The fourth proportional to 228,352.16, 315,120.96 and 124,985.84 is: 172,477.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,352.16 : 315,120.96 = 124,985.84 : x
  2. Step 2: Convert to fraction form
    228,352.16/315,120.96 = 124,985.84/x
  3. Step 3: Cross multiply
    228,352.16x = 315,120.96 × 124,985.84
  4. Step 4: Simplify right side
    228,352.16x = 39,385,657,887.21
  5. Step 5: Solve for x
    x = 39,385,657,887.21/228,352.16
  6. Step 6: Final answer
    x = 172,477.71

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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.