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Finding the Fourth Proportional to 346,820, 478,650.48 and 195,926.72

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Solution

The fourth proportional to 346,820, 478,650.48 and 195,926.72 is: 270,400.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,820 : 478,650.48 = 195,926.72 : x
  2. Step 2: Convert to fraction form
    346,820/478,650.48 = 195,926.72/x
  3. Step 3: Cross multiply
    346,820x = 478,650.48 × 195,926.72
  4. Step 4: Simplify right side
    346,820x = 93,780,418,572.83
  5. Step 5: Solve for x
    x = 93,780,418,572.83/346,820
  6. Step 6: Final answer
    x = 270,400.84

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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.