Home / 499,168.28-688,851.02-272,815.40

Finding the Fourth Proportional to 499,168.28, 688,851.02 and 272,815.40

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Solution

The fourth proportional to 499,168.28, 688,851.02 and 272,815.40 is: 376,484.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,168.28 : 688,851.02 = 272,815.40 : x
  2. Step 2: Convert to fraction form
    499,168.28/688,851.02 = 272,815.40/x
  3. Step 3: Cross multiply
    499,168.28x = 688,851.02 × 272,815.40
  4. Step 4: Simplify right side
    499,168.28x = 187,929,166,561.71
  5. Step 5: Solve for x
    x = 187,929,166,561.71/499,168.28
  6. Step 6: Final answer
    x = 376,484.59

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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.