Home / 388,927.47-536,763.29-245,680.59

Finding the Fourth Proportional to 388,927.47, 536,763.29 and 245,680.59

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Solution

The fourth proportional to 388,927.47, 536,763.29 and 245,680.59 is: 339,066.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,927.47 : 536,763.29 = 245,680.59 : x
  2. Step 2: Convert to fraction form
    388,927.47/536,763.29 = 245,680.59/x
  3. Step 3: Cross multiply
    388,927.47x = 536,763.29 × 245,680.59
  4. Step 4: Simplify right side
    388,927.47x = 131,872,320,549.14
  5. Step 5: Solve for x
    x = 131,872,320,549.14/388,927.47
  6. Step 6: Final answer
    x = 339,066.61

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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.