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Finding the Fourth Proportional to 340,400.60, 510,600.90 and 191,101.40

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Solution

The fourth proportional to 340,400.60, 510,600.90 and 191,101.40 is: 286,652.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,400.60 : 510,600.90 = 191,101.40 : x
  2. Step 2: Convert to fraction form
    340,400.60/510,600.90 = 191,101.40/x
  3. Step 3: Cross multiply
    340,400.60x = 510,600.90 × 191,101.40
  4. Step 4: Simplify right side
    340,400.60x = 97,576,546,831.26
  5. Step 5: Solve for x
    x = 97,576,546,831.26/340,400.60
  6. Step 6: Final answer
    x = 286,652.10

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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.