Home / 399,495.36-551,525.04-272,357.76

Finding the Fourth Proportional to 399,495.36, 551,525.04 and 272,357.76

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Solution

The fourth proportional to 399,495.36, 551,525.04 and 272,357.76 is: 376,004.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,495.36 : 551,525.04 = 272,357.76 : x
  2. Step 2: Convert to fraction form
    399,495.36/551,525.04 = 272,357.76/x
  3. Step 3: Cross multiply
    399,495.36x = 551,525.04 × 272,357.76
  4. Step 4: Simplify right side
    399,495.36x = 150,212,124,478.31
  5. Step 5: Solve for x
    x = 150,212,124,478.31/399,495.36
  6. Step 6: Final answer
    x = 376,004.68

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1.5x scale

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.