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Finding the Fourth Proportional to 242,581.80, 363,872.70 and 153,570.90

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Solution

The fourth proportional to 242,581.80, 363,872.70 and 153,570.90 is: 230,356.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,581.80 : 363,872.70 = 153,570.90 : x
  2. Step 2: Convert to fraction form
    242,581.80/363,872.70 = 153,570.90/x
  3. Step 3: Cross multiply
    242,581.80x = 363,872.70 × 153,570.90
  4. Step 4: Simplify right side
    242,581.80x = 55,880,258,024.43
  5. Step 5: Solve for x
    x = 55,880,258,024.43/242,581.80
  6. Step 6: Final answer
    x = 230,356.35

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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.