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Finding the Fourth Proportional to 286,507.60, 430,220.40 and 227,831.20

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Solution

The fourth proportional to 286,507.60, 430,220.40 and 227,831.20 is: 342,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,507.60 : 430,220.40 = 227,831.20 : x
  2. Step 2: Convert to fraction form
    286,507.60/430,220.40 = 227,831.20/x
  3. Step 3: Cross multiply
    286,507.60x = 430,220.40 × 227,831.20
  4. Step 4: Simplify right side
    286,507.60x = 98,017,629,996.48
  5. Step 5: Solve for x
    x = 98,017,629,996.48/286,507.60
  6. Step 6: Final answer
    x = 342,111.80

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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.