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Finding the Fourth Proportional to 316,296.32, 475,582.53 and 291,638.03

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Solution

The fourth proportional to 316,296.32, 475,582.53 and 291,638.03 is: 438,506.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,296.32 : 475,582.53 = 291,638.03 : x
  2. Step 2: Convert to fraction form
    316,296.32/475,582.53 = 291,638.03/x
  3. Step 3: Cross multiply
    316,296.32x = 475,582.53 × 291,638.03
  4. Step 4: Simplify right side
    316,296.32x = 138,697,952,151.62
  5. Step 5: Solve for x
    x = 138,697,952,151.62/316,296.32
  6. Step 6: Final answer
    x = 438,506.37

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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.