Home / 227,812.16-314,320.80-156,214.40

Finding the Fourth Proportional to 227,812.16, 314,320.80 and 156,214.40

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Solution

The fourth proportional to 227,812.16, 314,320.80 and 156,214.40 is: 215,534.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,812.16 : 314,320.80 = 156,214.40 : x
  2. Step 2: Convert to fraction form
    227,812.16/314,320.80 = 156,214.40/x
  3. Step 3: Cross multiply
    227,812.16x = 314,320.80 × 156,214.40
  4. Step 4: Simplify right side
    227,812.16x = 49,101,435,179.52
  5. Step 5: Solve for x
    x = 49,101,435,179.52/227,812.16
  6. Step 6: Final answer
    x = 215,534.74

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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.