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Finding the Fourth Proportional to 291,512.88, 402,280.08 and 164,189.52

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Solution

The fourth proportional to 291,512.88, 402,280.08 and 164,189.52 is: 226,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,512.88 : 402,280.08 = 164,189.52 : x
  2. Step 2: Convert to fraction form
    291,512.88/402,280.08 = 164,189.52/x
  3. Step 3: Cross multiply
    291,512.88x = 402,280.08 × 164,189.52
  4. Step 4: Simplify right side
    291,512.88x = 66,050,173,240.76
  5. Step 5: Solve for x
    x = 66,050,173,240.76/291,512.88
  6. Step 6: Final answer
    x = 226,577.20

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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.