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Finding the Fourth Proportional to 316,247.06, 474,526.44 and 147,779

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Solution

The fourth proportional to 316,247.06, 474,526.44 and 147,779 is: 221,741.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,247.06 : 474,526.44 = 147,779 : x
  2. Step 2: Convert to fraction form
    316,247.06/474,526.44 = 147,779/x
  3. Step 3: Cross multiply
    316,247.06x = 474,526.44 × 147,779
  4. Step 4: Simplify right side
    316,247.06x = 70,125,042,776.76
  5. Step 5: Solve for x
    x = 70,125,042,776.76/316,247.06
  6. Step 6: Final answer
    x = 221,741.33

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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.