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Finding the Fourth Proportional to 315,041.63, 434,630.43 and 182,347.15

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Solution

The fourth proportional to 315,041.63, 434,630.43 and 182,347.15 is: 251,565.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,041.63 : 434,630.43 = 182,347.15 : x
  2. Step 2: Convert to fraction form
    315,041.63/434,630.43 = 182,347.15/x
  3. Step 3: Cross multiply
    315,041.63x = 434,630.43 × 182,347.15
  4. Step 4: Simplify right side
    315,041.63x = 79,253,620,213.77
  5. Step 5: Solve for x
    x = 79,253,620,213.77/315,041.63
  6. Step 6: Final answer
    x = 251,565.55

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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.