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Finding the Fourth Proportional to 242,130.30, 363,195.45 and 211,026.30

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Solution

The fourth proportional to 242,130.30, 363,195.45 and 211,026.30 is: 316,539.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,130.30 : 363,195.45 = 211,026.30 : x
  2. Step 2: Convert to fraction form
    242,130.30/363,195.45 = 211,026.30/x
  3. Step 3: Cross multiply
    242,130.30x = 363,195.45 × 211,026.30
  4. Step 4: Simplify right side
    242,130.30x = 76,643,791,990.34
  5. Step 5: Solve for x
    x = 76,643,791,990.34/242,130.30
  6. Step 6: Final answer
    x = 316,539.45

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1.5x scale

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.