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Finding the Fourth Proportional to 388,368.84, 582,779.72 and 163,715.52

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Solution

The fourth proportional to 388,368.84, 582,779.72 and 163,715.52 is: 245,668.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,368.84 : 582,779.72 = 163,715.52 : x
  2. Step 2: Convert to fraction form
    388,368.84/582,779.72 = 163,715.52/x
  3. Step 3: Cross multiply
    388,368.84x = 582,779.72 × 163,715.52
  4. Step 4: Simplify right side
    388,368.84x = 95,410,084,905.25
  5. Step 5: Solve for x
    x = 95,410,084,905.25/388,368.84
  6. Step 6: Final answer
    x = 245,668.74

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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.