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Finding the Fourth Proportional to 246,340.80, 369,479.30 and 77,878.13

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Solution

The fourth proportional to 246,340.80, 369,479.30 and 77,878.13 is: 116,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,340.80 : 369,479.30 = 77,878.13 : x
  2. Step 2: Convert to fraction form
    246,340.80/369,479.30 = 77,878.13/x
  3. Step 3: Cross multiply
    246,340.80x = 369,479.30 × 77,878.13
  4. Step 4: Simplify right side
    246,340.80x = 28,774,354,720.92
  5. Step 5: Solve for x
    x = 28,774,354,720.92/246,340.80
  6. Step 6: Final answer
    x = 116,807.10

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1.5x scale

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.