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Finding the Fourth Proportional to 154,753.18, 212,168.59 and 151,953.82

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Solution

The fourth proportional to 154,753.18, 212,168.59 and 151,953.82 is: 208,330.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,753.18 : 212,168.59 = 151,953.82 : x
  2. Step 2: Convert to fraction form
    154,753.18/212,168.59 = 151,953.82/x
  3. Step 3: Cross multiply
    154,753.18x = 212,168.59 × 151,953.82
  4. Step 4: Simplify right side
    154,753.18x = 32,239,827,734.51
  5. Step 5: Solve for x
    x = 32,239,827,734.51/154,753.18
  6. Step 6: Final answer
    x = 208,330.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.