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Finding the Fourth Proportional to 353,673.04, 488,057.52 and 210,400.24

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Solution

The fourth proportional to 353,673.04, 488,057.52 and 210,400.24 is: 290,345.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,673.04 : 488,057.52 = 210,400.24 : x
  2. Step 2: Convert to fraction form
    353,673.04/488,057.52 = 210,400.24/x
  3. Step 3: Cross multiply
    353,673.04x = 488,057.52 × 210,400.24
  4. Step 4: Simplify right side
    353,673.04x = 102,687,419,341.81
  5. Step 5: Solve for x
    x = 102,687,419,341.81/353,673.04
  6. Step 6: Final answer
    x = 290,345.62

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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.