Home / 212,749.40-319,124.10-193,066.40

Finding the Fourth Proportional to 212,749.40, 319,124.10 and 193,066.40

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Solution

The fourth proportional to 212,749.40, 319,124.10 and 193,066.40 is: 289,599.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,749.40 : 319,124.10 = 193,066.40 : x
  2. Step 2: Convert to fraction form
    212,749.40/319,124.10 = 193,066.40/x
  3. Step 3: Cross multiply
    212,749.40x = 319,124.10 × 193,066.40
  4. Step 4: Simplify right side
    212,749.40x = 61,612,141,140.24
  5. Step 5: Solve for x
    x = 61,612,141,140.24/212,749.40
  6. Step 6: Final answer
    x = 289,599.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.