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Finding the Fourth Proportional to 346,478.64, 519,717.92 and 130,377.96

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Solution

The fourth proportional to 346,478.64, 519,717.92 and 130,377.96 is: 195,566.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,478.64 : 519,717.92 = 130,377.96 : x
  2. Step 2: Convert to fraction form
    346,478.64/519,717.92 = 130,377.96/x
  3. Step 3: Cross multiply
    346,478.64x = 519,717.92 × 130,377.96
  4. Step 4: Simplify right side
    346,478.64x = 67,759,762,185.04
  5. Step 5: Solve for x
    x = 67,759,762,185.04/346,478.64
  6. Step 6: Final answer
    x = 195,566.92

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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.