Home / 281,108.59-387,939.02-153,784.18

Finding the Fourth Proportional to 281,108.59, 387,939.02 and 153,784.18

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Solution

The fourth proportional to 281,108.59, 387,939.02 and 153,784.18 is: 212,227.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,108.59 : 387,939.02 = 153,784.18 : x
  2. Step 2: Convert to fraction form
    281,108.59/387,939.02 = 153,784.18/x
  3. Step 3: Cross multiply
    281,108.59x = 387,939.02 × 153,784.18
  4. Step 4: Simplify right side
    281,108.59x = 59,658,884,080.70
  5. Step 5: Solve for x
    x = 59,658,884,080.70/281,108.59
  6. Step 6: Final answer
    x = 212,227.18

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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.