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Finding the Fourth Proportional to 342,881.70, 478,853.40 and 342,881.70

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Solution

The fourth proportional to 342,881.70, 478,853.40 and 342,881.70 is: 478,853.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,881.70 : 478,853.40 = 342,881.70 : x
  2. Step 2: Convert to fraction form
    342,881.70/478,853.40 = 342,881.70/x
  3. Step 3: Cross multiply
    342,881.70x = 478,853.40 × 342,881.70
  4. Step 4: Simplify right side
    342,881.70x = 164,190,067,842.78
  5. Step 5: Solve for x
    x = 164,190,067,842.78/342,881.70
  6. Step 6: Final answer
    x = 478,853.40

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1.5x scale

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.