Home / 311,799.95-430,273.45-197,140.31

Finding the Fourth Proportional to 311,799.95, 430,273.45 and 197,140.31

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Solution

The fourth proportional to 311,799.95, 430,273.45 and 197,140.31 is: 272,047.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,799.95 : 430,273.45 = 197,140.31 : x
  2. Step 2: Convert to fraction form
    311,799.95/430,273.45 = 197,140.31/x
  3. Step 3: Cross multiply
    311,799.95x = 430,273.45 × 197,140.31
  4. Step 4: Simplify right side
    311,799.95x = 84,824,241,317.77
  5. Step 5: Solve for x
    x = 84,824,241,317.77/311,799.95
  6. Step 6: Final answer
    x = 272,047.00

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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.