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Finding the Fourth Proportional to 370,323.12, 510,841.28 and 301,486.64

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Solution

The fourth proportional to 370,323.12, 510,841.28 and 301,486.64 is: 415,884.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,323.12 : 510,841.28 = 301,486.64 : x
  2. Step 2: Convert to fraction form
    370,323.12/510,841.28 = 301,486.64/x
  3. Step 3: Cross multiply
    370,323.12x = 510,841.28 × 301,486.64
  4. Step 4: Simplify right side
    370,323.12x = 154,011,817,018.86
  5. Step 5: Solve for x
    x = 154,011,817,018.86/370,323.12
  6. Step 6: Final answer
    x = 415,884.96

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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.