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Finding the Fourth Proportional to 340,663.30, 510,994.95 and 214,692.10

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Solution

The fourth proportional to 340,663.30, 510,994.95 and 214,692.10 is: 322,038.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,663.30 : 510,994.95 = 214,692.10 : x
  2. Step 2: Convert to fraction form
    340,663.30/510,994.95 = 214,692.10/x
  3. Step 3: Cross multiply
    340,663.30x = 510,994.95 × 214,692.10
  4. Step 4: Simplify right side
    340,663.30x = 109,706,578,904.90
  5. Step 5: Solve for x
    x = 109,706,578,904.90/340,663.30
  6. Step 6: Final answer
    x = 322,038.15

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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.