Home / 487,063.32-672,145.14-272,203.26

Finding the Fourth Proportional to 487,063.32, 672,145.14 and 272,203.26

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Solution

The fourth proportional to 487,063.32, 672,145.14 and 272,203.26 is: 375,639.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,063.32 : 672,145.14 = 272,203.26 : x
  2. Step 2: Convert to fraction form
    487,063.32/672,145.14 = 272,203.26/x
  3. Step 3: Cross multiply
    487,063.32x = 672,145.14 × 272,203.26
  4. Step 4: Simplify right side
    487,063.32x = 182,960,098,301.16
  5. Step 5: Solve for x
    x = 182,960,098,301.16/487,063.32
  6. Step 6: Final answer
    x = 375,639.25

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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.