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Finding the Fourth Proportional to 442,435.68, 610,613.08 and 251,477.78

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Solution

The fourth proportional to 442,435.68, 610,613.08 and 251,477.78 is: 347,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,435.68 : 610,613.08 = 251,477.78 : x
  2. Step 2: Convert to fraction form
    442,435.68/610,613.08 = 251,477.78/x
  3. Step 3: Cross multiply
    442,435.68x = 610,613.08 × 251,477.78
  4. Step 4: Simplify right side
    442,435.68x = 153,555,621,797.36
  5. Step 5: Solve for x
    x = 153,555,621,797.36/442,435.68
  6. Step 6: Final answer
    x = 347,068.80

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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.