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Finding the Fourth Proportional to 478,475.84, 717,844.32 and 141,533.12

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Solution

The fourth proportional to 478,475.84, 717,844.32 and 141,533.12 is: 212,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,475.84 : 717,844.32 = 141,533.12 : x
  2. Step 2: Convert to fraction form
    478,475.84/717,844.32 = 141,533.12/x
  3. Step 3: Cross multiply
    478,475.84x = 717,844.32 × 141,533.12
  4. Step 4: Simplify right side
    478,475.84x = 101,598,746,283.88
  5. Step 5: Solve for x
    x = 101,598,746,283.88/478,475.84
  6. Step 6: Final answer
    x = 212,338.30

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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.