Home / 242,621.40-363,543.30-153,715.80

Finding the Fourth Proportional to 242,621.40, 363,543.30 and 153,715.80

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Solution

The fourth proportional to 242,621.40, 363,543.30 and 153,715.80 is: 230,327.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,621.40 : 363,543.30 = 153,715.80 : x
  2. Step 2: Convert to fraction form
    242,621.40/363,543.30 = 153,715.80/x
  3. Step 3: Cross multiply
    242,621.40x = 363,543.30 × 153,715.80
  4. Step 4: Simplify right side
    242,621.40x = 55,882,349,194.14
  5. Step 5: Solve for x
    x = 55,882,349,194.14/242,621.40
  6. Step 6: Final answer
    x = 230,327.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.