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Finding the Fourth Proportional to 342,867.70, 478,833.80 and 342,867.70

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Solution

The fourth proportional to 342,867.70, 478,833.80 and 342,867.70 is: 478,833.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,867.70 : 478,833.80 = 342,867.70 : x
  2. Step 2: Convert to fraction form
    342,867.70/478,833.80 = 342,867.70/x
  3. Step 3: Cross multiply
    342,867.70x = 478,833.80 × 342,867.70
  4. Step 4: Simplify right side
    342,867.70x = 164,176,643,688.26
  5. Step 5: Solve for x
    x = 164,176,643,688.26/342,867.70
  6. Step 6: Final answer
    x = 478,833.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.