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Finding the Fourth Proportional to 243,065.90, 364,598.85 and 223,820.30

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Solution

The fourth proportional to 243,065.90, 364,598.85 and 223,820.30 is: 335,730.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,065.90 : 364,598.85 = 223,820.30 : x
  2. Step 2: Convert to fraction form
    243,065.90/364,598.85 = 223,820.30/x
  3. Step 3: Cross multiply
    243,065.90x = 364,598.85 × 223,820.30
  4. Step 4: Simplify right side
    243,065.90x = 81,604,623,986.66
  5. Step 5: Solve for x
    x = 81,604,623,986.66/243,065.90
  6. Step 6: Final answer
    x = 335,730.45

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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.