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Finding the Fourth Proportional to 342,608.79, 513,574.17 and 162,377.46

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Solution

The fourth proportional to 342,608.79, 513,574.17 and 162,377.46 is: 243,405.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,608.79 : 513,574.17 = 162,377.46 : x
  2. Step 2: Convert to fraction form
    342,608.79/513,574.17 = 162,377.46/x
  3. Step 3: Cross multiply
    342,608.79x = 513,574.17 × 162,377.46
  4. Step 4: Simplify right side
    342,608.79x = 83,392,869,550.67
  5. Step 5: Solve for x
    x = 83,392,869,550.67/342,608.79
  6. Step 6: Final answer
    x = 243,405.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.