Home / 211,038.02-291,275.54-143,076.85

Finding the Fourth Proportional to 211,038.02, 291,275.54 and 143,076.85

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Solution

The fourth proportional to 211,038.02, 291,275.54 and 143,076.85 is: 197,475.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,038.02 : 291,275.54 = 143,076.85 : x
  2. Step 2: Convert to fraction form
    211,038.02/291,275.54 = 143,076.85/x
  3. Step 3: Cross multiply
    211,038.02x = 291,275.54 × 143,076.85
  4. Step 4: Simplify right side
    211,038.02x = 41,674,784,573.49
  5. Step 5: Solve for x
    x = 41,674,784,573.49/211,038.02
  6. Step 6: Final answer
    x = 197,475.24

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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.