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Finding the Fourth Proportional to 340,420.12, 510,703.58 and 169,734.89

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Solution

The fourth proportional to 340,420.12, 510,703.58 and 169,734.89 is: 254,638.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,420.12 : 510,703.58 = 169,734.89 : x
  2. Step 2: Convert to fraction form
    340,420.12/510,703.58 = 169,734.89/x
  3. Step 3: Cross multiply
    340,420.12x = 510,703.58 × 169,734.89
  4. Step 4: Simplify right side
    340,420.12x = 86,684,217,675.00
  5. Step 5: Solve for x
    x = 86,684,217,675.00/340,420.12
  6. Step 6: Final answer
    x = 254,638.94

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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.