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Finding the Fourth Proportional to 375,673.08, 518,126.85 and 330,254.76

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Solution

The fourth proportional to 375,673.08, 518,126.85 and 330,254.76 is: 455,486.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,673.08 : 518,126.85 = 330,254.76 : x
  2. Step 2: Convert to fraction form
    375,673.08/518,126.85 = 330,254.76/x
  3. Step 3: Cross multiply
    375,673.08x = 518,126.85 × 330,254.76
  4. Step 4: Simplify right side
    375,673.08x = 171,113,858,496.31
  5. Step 5: Solve for x
    x = 171,113,858,496.31/375,673.08
  6. Step 6: Final answer
    x = 455,486.08

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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.