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Finding the Fourth Proportional to 242,750.40, 363,931.20 and 102,393.60

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Solution

The fourth proportional to 242,750.40, 363,931.20 and 102,393.60 is: 153,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,750.40 : 363,931.20 = 102,393.60 : x
  2. Step 2: Convert to fraction form
    242,750.40/363,931.20 = 102,393.60/x
  3. Step 3: Cross multiply
    242,750.40x = 363,931.20 × 102,393.60
  4. Step 4: Simplify right side
    242,750.40x = 37,264,225,720.32
  5. Step 5: Solve for x
    x = 37,264,225,720.32/242,750.40
  6. Step 6: Final answer
    x = 153,508.40

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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.