Home / 380,128.02-524,635.56-216,784.87

Finding the Fourth Proportional to 380,128.02, 524,635.56 and 216,784.87

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Solution

The fourth proportional to 380,128.02, 524,635.56 and 216,784.87 is: 299,196.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,128.02 : 524,635.56 = 216,784.87 : x
  2. Step 2: Convert to fraction form
    380,128.02/524,635.56 = 216,784.87/x
  3. Step 3: Cross multiply
    380,128.02x = 524,635.56 × 216,784.87
  4. Step 4: Simplify right side
    380,128.02x = 113,733,051,671.98
  5. Step 5: Solve for x
    x = 113,733,051,671.98/380,128.02
  6. Step 6: Final answer
    x = 299,196.71

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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.