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Finding the Fourth Proportional to 340,689.60, 510,259.56 and 264,174.90

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Solution

The fourth proportional to 340,689.60, 510,259.56 and 264,174.90 is: 395,661.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,689.60 : 510,259.56 = 264,174.90 : x
  2. Step 2: Convert to fraction form
    340,689.60/510,259.56 = 264,174.90/x
  3. Step 3: Cross multiply
    340,689.60x = 510,259.56 × 264,174.90
  4. Step 4: Simplify right side
    340,689.60x = 134,797,768,237.04
  5. Step 5: Solve for x
    x = 134,797,768,237.04/340,689.60
  6. Step 6: Final answer
    x = 395,661.53

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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.