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Finding the Fourth Proportional to 542,063.07, 812,507.43 and 242,130.60

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Solution

The fourth proportional to 542,063.07, 812,507.43 and 242,130.60 is: 362,933.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,063.07 : 812,507.43 = 242,130.60 : x
  2. Step 2: Convert to fraction form
    542,063.07/812,507.43 = 242,130.60/x
  3. Step 3: Cross multiply
    542,063.07x = 812,507.43 × 242,130.60
  4. Step 4: Simplify right side
    542,063.07x = 196,732,911,530.36
  5. Step 5: Solve for x
    x = 196,732,911,530.36/542,063.07
  6. Step 6: Final answer
    x = 362,933.62

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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.