Home / 316,147.86-436,300.02-187,160.36

Finding the Fourth Proportional to 316,147.86, 436,300.02 and 187,160.36

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Solution

The fourth proportional to 316,147.86, 436,300.02 and 187,160.36 is: 258,290.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,147.86 : 436,300.02 = 187,160.36 : x
  2. Step 2: Convert to fraction form
    316,147.86/436,300.02 = 187,160.36/x
  3. Step 3: Cross multiply
    316,147.86x = 436,300.02 × 187,160.36
  4. Step 4: Simplify right side
    316,147.86x = 81,658,066,629.71
  5. Step 5: Solve for x
    x = 81,658,066,629.71/316,147.86
  6. Step 6: Final answer
    x = 258,290.75

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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.