Home / 487,190.16-672,334.50-272,365.98

Finding the Fourth Proportional to 487,190.16, 672,334.50 and 272,365.98

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Solution

The fourth proportional to 487,190.16, 672,334.50 and 272,365.98 is: 375,871.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,190.16 : 672,334.50 = 272,365.98 : x
  2. Step 2: Convert to fraction form
    487,190.16/672,334.50 = 272,365.98/x
  3. Step 3: Cross multiply
    487,190.16x = 672,334.50 × 272,365.98
  4. Step 4: Simplify right side
    487,190.16x = 183,121,044,980.31
  5. Step 5: Solve for x
    x = 183,121,044,980.31/487,190.16
  6. Step 6: Final answer
    x = 375,871.81

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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.