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Finding the Fourth Proportional to 487,090.04, 672,155.30 and 269,285.68

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Solution

The fourth proportional to 487,090.04, 672,155.30 and 269,285.68 is: 371,598.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,090.04 : 672,155.30 = 269,285.68 : x
  2. Step 2: Convert to fraction form
    487,090.04/672,155.30 = 269,285.68/x
  3. Step 3: Cross multiply
    487,090.04x = 672,155.30 × 269,285.68
  4. Step 4: Simplify right side
    487,090.04x = 181,001,797,026.10
  5. Step 5: Solve for x
    x = 181,001,797,026.10/487,090.04
  6. Step 6: Final answer
    x = 371,598.23

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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.