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Finding the Fourth Proportional to 437,566.30, 655,365.30 and 260,419.30

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Solution

The fourth proportional to 437,566.30, 655,365.30 and 260,419.30 is: 390,043.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,566.30 : 655,365.30 = 260,419.30 : x
  2. Step 2: Convert to fraction form
    437,566.30/655,365.30 = 260,419.30/x
  3. Step 3: Cross multiply
    437,566.30x = 655,365.30 × 260,419.30
  4. Step 4: Simplify right side
    437,566.30x = 170,669,772,670.29
  5. Step 5: Solve for x
    x = 170,669,772,670.29/437,566.30
  6. Step 6: Final answer
    x = 390,043.23

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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.