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Finding the Fourth Proportional to 253,706.87, 349,707.42 and 172,008.65

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Solution

The fourth proportional to 253,706.87, 349,707.42 and 172,008.65 is: 237,095.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,706.87 : 349,707.42 = 172,008.65 : x
  2. Step 2: Convert to fraction form
    253,706.87/349,707.42 = 172,008.65/x
  3. Step 3: Cross multiply
    253,706.87x = 349,707.42 × 172,008.65
  4. Step 4: Simplify right side
    253,706.87x = 60,152,701,209.18
  5. Step 5: Solve for x
    x = 60,152,701,209.18/253,706.87
  6. Step 6: Final answer
    x = 237,095.28

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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.