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Finding the Fourth Proportional to 330,590.48, 456,434.56 and 253,973.12

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Solution

The fourth proportional to 330,590.48, 456,434.56 and 253,973.12 is: 350,651.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,590.48 : 456,434.56 = 253,973.12 : x
  2. Step 2: Convert to fraction form
    330,590.48/456,434.56 = 253,973.12/x
  3. Step 3: Cross multiply
    330,590.48x = 456,434.56 × 253,973.12
  4. Step 4: Simplify right side
    330,590.48x = 115,922,109,279.03
  5. Step 5: Solve for x
    x = 115,922,109,279.03/330,590.48
  6. Step 6: Final answer
    x = 350,651.69

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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.