Home / 242,720.30-364,080.45-163,405.10

Finding the Fourth Proportional to 242,720.30, 364,080.45 and 163,405.10

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Solution

The fourth proportional to 242,720.30, 364,080.45 and 163,405.10 is: 245,107.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,720.30 : 364,080.45 = 163,405.10 : x
  2. Step 2: Convert to fraction form
    242,720.30/364,080.45 = 163,405.10/x
  3. Step 3: Cross multiply
    242,720.30x = 364,080.45 × 163,405.10
  4. Step 4: Simplify right side
    242,720.30x = 59,492,602,340.30
  5. Step 5: Solve for x
    x = 59,492,602,340.30/242,720.30
  6. Step 6: Final answer
    x = 245,107.65

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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.