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Finding the Fourth Proportional to 440,640.60, 661,133.70 and 160,186.20

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Solution

The fourth proportional to 440,640.60, 661,133.70 and 160,186.20 is: 240,342.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,640.60 : 661,133.70 = 160,186.20 : x
  2. Step 2: Convert to fraction form
    440,640.60/661,133.70 = 160,186.20/x
  3. Step 3: Cross multiply
    440,640.60x = 661,133.70 × 160,186.20
  4. Step 4: Simplify right side
    440,640.60x = 105,904,495,094.94
  5. Step 5: Solve for x
    x = 105,904,495,094.94/440,640.60
  6. Step 6: Final answer
    x = 240,342.12

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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.