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Finding the Fourth Proportional to 162,889.74, 243,220.47 and 145,913.16

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Solution

The fourth proportional to 162,889.74, 243,220.47 and 145,913.16 is: 217,871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,889.74 : 243,220.47 = 145,913.16 : x
  2. Step 2: Convert to fraction form
    162,889.74/243,220.47 = 145,913.16/x
  3. Step 3: Cross multiply
    162,889.74x = 243,220.47 × 145,913.16
  4. Step 4: Simplify right side
    162,889.74x = 35,489,067,354.39
  5. Step 5: Solve for x
    x = 35,489,067,354.39/162,889.74
  6. Step 6: Final answer
    x = 217,871.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.