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Finding the Fourth Proportional to 205,168.40, 307,752.60 and 160,931.60

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Solution

The fourth proportional to 205,168.40, 307,752.60 and 160,931.60 is: 241,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,168.40 : 307,752.60 = 160,931.60 : x
  2. Step 2: Convert to fraction form
    205,168.40/307,752.60 = 160,931.60/x
  3. Step 3: Cross multiply
    205,168.40x = 307,752.60 × 160,931.60
  4. Step 4: Simplify right side
    205,168.40x = 49,527,118,322.16
  5. Step 5: Solve for x
    x = 49,527,118,322.16/205,168.40
  6. Step 6: Final answer
    x = 241,397.40

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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.