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Finding the Fourth Proportional to 340,637.58, 470,080 and 197,480.62

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Solution

The fourth proportional to 340,637.58, 470,080 and 197,480.62 is: 272,523.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,637.58 : 470,080 = 197,480.62 : x
  2. Step 2: Convert to fraction form
    340,637.58/470,080 = 197,480.62/x
  3. Step 3: Cross multiply
    340,637.58x = 470,080 × 197,480.62
  4. Step 4: Simplify right side
    340,637.58x = 92,831,689,849.60
  5. Step 5: Solve for x
    x = 92,831,689,849.60/340,637.58
  6. Step 6: Final answer
    x = 272,523.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.