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Finding the Fourth Proportional to 379,984.77, 524,355.93 and 207,870.30

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Solution

The fourth proportional to 379,984.77, 524,355.93 and 207,870.30 is: 286,848.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,984.77 : 524,355.93 = 207,870.30 : x
  2. Step 2: Convert to fraction form
    379,984.77/524,355.93 = 207,870.30/x
  3. Step 3: Cross multiply
    379,984.77x = 524,355.93 × 207,870.30
  4. Step 4: Simplify right side
    379,984.77x = 108,998,024,475.88
  5. Step 5: Solve for x
    x = 108,998,024,475.88/379,984.77
  6. Step 6: Final answer
    x = 286,848.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.