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Finding the Fourth Proportional to 342,812.64, 473,037 and 191,909.76

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Solution

The fourth proportional to 342,812.64, 473,037 and 191,909.76 is: 264,810.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,812.64 : 473,037 = 191,909.76 : x
  2. Step 2: Convert to fraction form
    342,812.64/473,037 = 191,909.76/x
  3. Step 3: Cross multiply
    342,812.64x = 473,037 × 191,909.76
  4. Step 4: Simplify right side
    342,812.64x = 90,780,417,141.12
  5. Step 5: Solve for x
    x = 90,780,417,141.12/342,812.64
  6. Step 6: Final answer
    x = 264,810.59

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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.