Home / 281,543.02-388,529.46-154,223.20

Finding the Fourth Proportional to 281,543.02, 388,529.46 and 154,223.20

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Solution

The fourth proportional to 281,543.02, 388,529.46 and 154,223.20 is: 212,828.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,543.02 : 388,529.46 = 154,223.20 : x
  2. Step 2: Convert to fraction form
    281,543.02/388,529.46 = 154,223.20/x
  3. Step 3: Cross multiply
    281,543.02x = 388,529.46 × 154,223.20
  4. Step 4: Simplify right side
    281,543.02x = 59,920,256,615.47
  5. Step 5: Solve for x
    x = 59,920,256,615.47/281,543.02
  6. Step 6: Final answer
    x = 212,828.07

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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.