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Finding the Fourth Proportional to 311,577.70, 429,473.52 and 243,476.34

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Solution

The fourth proportional to 311,577.70, 429,473.52 and 243,476.34 is: 335,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,577.70 : 429,473.52 = 243,476.34 : x
  2. Step 2: Convert to fraction form
    311,577.70/429,473.52 = 243,476.34/x
  3. Step 3: Cross multiply
    311,577.70x = 429,473.52 × 243,476.34
  4. Step 4: Simplify right side
    311,577.70x = 104,566,640,776.52
  5. Step 5: Solve for x
    x = 104,566,640,776.52/311,577.70
  6. Step 6: Final answer
    x = 335,603.74

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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.