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Finding the Fourth Proportional to 349,089.60, 523,634.40 and 260,516.10

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Solution

The fourth proportional to 349,089.60, 523,634.40 and 260,516.10 is: 390,774.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,089.60 : 523,634.40 = 260,516.10 : x
  2. Step 2: Convert to fraction form
    349,089.60/523,634.40 = 260,516.10/x
  3. Step 3: Cross multiply
    349,089.60x = 523,634.40 × 260,516.10
  4. Step 4: Simplify right side
    349,089.60x = 136,415,191,713.84
  5. Step 5: Solve for x
    x = 136,415,191,713.84/349,089.60
  6. Step 6: Final answer
    x = 390,774.15

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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.