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Finding the Fourth Proportional to 349,625.70, 524,438.55 and 209,312.10

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Solution

The fourth proportional to 349,625.70, 524,438.55 and 209,312.10 is: 313,968.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,625.70 : 524,438.55 = 209,312.10 : x
  2. Step 2: Convert to fraction form
    349,625.70/524,438.55 = 209,312.10/x
  3. Step 3: Cross multiply
    349,625.70x = 524,438.55 × 209,312.10
  4. Step 4: Simplify right side
    349,625.70x = 109,771,334,221.46
  5. Step 5: Solve for x
    x = 109,771,334,221.46/349,625.70
  6. Step 6: Final answer
    x = 313,968.15

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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.