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Finding the Fourth Proportional to 480,259.20, 719,697.60 and 213,801.60

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Solution

The fourth proportional to 480,259.20, 719,697.60 and 213,801.60 is: 320,394.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,259.20 : 719,697.60 = 213,801.60 : x
  2. Step 2: Convert to fraction form
    480,259.20/719,697.60 = 213,801.60/x
  3. Step 3: Cross multiply
    480,259.20x = 719,697.60 × 213,801.60
  4. Step 4: Simplify right side
    480,259.20x = 153,872,498,396.16
  5. Step 5: Solve for x
    x = 153,872,498,396.16/480,259.20
  6. Step 6: Final answer
    x = 320,394.69

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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.