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Finding the Fourth Proportional to 304,641.53, 420,272.94 and 183,715.61

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Solution

The fourth proportional to 304,641.53, 420,272.94 and 183,715.61 is: 253,447.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,641.53 : 420,272.94 = 183,715.61 : x
  2. Step 2: Convert to fraction form
    304,641.53/420,272.94 = 183,715.61/x
  3. Step 3: Cross multiply
    304,641.53x = 420,272.94 × 183,715.61
  4. Step 4: Simplify right side
    304,641.53x = 77,210,697,437.23
  5. Step 5: Solve for x
    x = 77,210,697,437.23/304,641.53
  6. Step 6: Final answer
    x = 253,447.71

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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.