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Finding the Fourth Proportional to 353,737.71, 488,210.42 and 208,570.12

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Solution

The fourth proportional to 353,737.71, 488,210.42 and 208,570.12 is: 287,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,737.71 : 488,210.42 = 208,570.12 : x
  2. Step 2: Convert to fraction form
    353,737.71/488,210.42 = 208,570.12/x
  3. Step 3: Cross multiply
    353,737.71x = 488,210.42 × 208,570.12
  4. Step 4: Simplify right side
    353,737.71x = 101,826,105,884.65
  5. Step 5: Solve for x
    x = 101,826,105,884.65/353,737.71
  6. Step 6: Final answer
    x = 287,857.65

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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.