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Finding the Fourth Proportional to 354,050.62, 488,366.59 and 210,703.66

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Solution

The fourth proportional to 354,050.62, 488,366.59 and 210,703.66 is: 290,638.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,050.62 : 488,366.59 = 210,703.66 : x
  2. Step 2: Convert to fraction form
    354,050.62/488,366.59 = 210,703.66/x
  3. Step 3: Cross multiply
    354,050.62x = 488,366.59 × 210,703.66
  4. Step 4: Simplify right side
    354,050.62x = 102,900,627,934.72
  5. Step 5: Solve for x
    x = 102,900,627,934.72/354,050.62
  6. Step 6: Final answer
    x = 290,638.18

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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.