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Finding the Fourth Proportional to 304,431.61, 420,284.55 and 183,603.64

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Solution

The fourth proportional to 304,431.61, 420,284.55 and 183,603.64 is: 253,474.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,431.61 : 420,284.55 = 183,603.64 : x
  2. Step 2: Convert to fraction form
    304,431.61/420,284.55 = 183,603.64/x
  3. Step 3: Cross multiply
    304,431.61x = 420,284.55 × 183,603.64
  4. Step 4: Simplify right side
    304,431.61x = 77,165,773,215.76
  5. Step 5: Solve for x
    x = 77,165,773,215.76/304,431.61
  6. Step 6: Final answer
    x = 253,474.90

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1.5x scale

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.