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Finding the Fourth Proportional to 340,832.90, 470,798.64 and 254,642.09

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Solution

The fourth proportional to 340,832.90, 470,798.64 and 254,642.09 is: 351,741.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,832.90 : 470,798.64 = 254,642.09 : x
  2. Step 2: Convert to fraction form
    340,832.90/470,798.64 = 254,642.09/x
  3. Step 3: Cross multiply
    340,832.90x = 470,798.64 × 254,642.09
  4. Step 4: Simplify right side
    340,832.90x = 119,885,147,304.76
  5. Step 5: Solve for x
    x = 119,885,147,304.76/340,832.90
  6. Step 6: Final answer
    x = 351,741.72

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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.