Home / 487,175.22-672,302.59-272,315.07

Finding the Fourth Proportional to 487,175.22, 672,302.59 and 272,315.07

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Solution

The fourth proportional to 487,175.22, 672,302.59 and 272,315.07 is: 375,795.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,175.22 : 672,302.59 = 272,315.07 : x
  2. Step 2: Convert to fraction form
    487,175.22/672,302.59 = 272,315.07/x
  3. Step 3: Cross multiply
    487,175.22x = 672,302.59 × 272,315.07
  4. Step 4: Simplify right side
    487,175.22x = 183,078,126,176.24
  5. Step 5: Solve for x
    x = 183,078,126,176.24/487,175.22
  6. Step 6: Final answer
    x = 375,795.23

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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.