Home / 487,075.96-672,165.79-272,216.01

Finding the Fourth Proportional to 487,075.96, 672,165.79 and 272,216.01

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Solution

The fourth proportional to 487,075.96, 672,165.79 and 272,216.01 is: 375,658.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,075.96 : 672,165.79 = 272,216.01 : x
  2. Step 2: Convert to fraction form
    487,075.96/672,165.79 = 272,216.01/x
  3. Step 3: Cross multiply
    487,075.96x = 672,165.79 × 272,216.01
  4. Step 4: Simplify right side
    487,075.96x = 182,974,288,731.76
  5. Step 5: Solve for x
    x = 182,974,288,731.76/487,075.96
  6. Step 6: Final answer
    x = 375,658.63

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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.